diff --git a/query_string.nex b/query_string.nex
index 16ed73de..d78fca84 100644
--- a/query_string.nex
+++ b/query_string.nex
@@ -6,12 +6,21 @@
 /\+/              { logDebugTokens("PLUS"); return tPLUS }
 /-/               { logDebugTokens("MINUS"); return tMINUS }
 /:/               { logDebugTokens("COLON"); return tCOLON }
-/\^/               { logDebugTokens("BOOST"); return tBOOST }
 /\(/              { logDebugTokens("LPAREN"); return tLPAREN }
 /\)/              { logDebugTokens("RPAREN"); return tRPAREN }
 />/              { logDebugTokens("GREATER"); return tGREATER }
 /</              { logDebugTokens("LESS"); return tLESS }
 /=/              { logDebugTokens("EQUAL"); return tEQUAL }
+/\^([0-9]|[1-9][0-9]*)(\.[0-9][0-9]*)?/
+                  {
+                    lval.s = yylex.Text()[1:]
+                    logDebugTokens("BOOST");
+                    return tBOOST }
+/\^/              {
+                    lval.s = "1"
+                    logDebugTokens("BOOST");
+                    return tBOOST
+                  }
 /~([0-9]|[1-9][0-9]*)/
                   {
                     lval.s = yylex.Text()[1:]
diff --git a/query_string.nn.go b/query_string.nn.go
index 37d554bc..0b5d11af 100644
--- a/query_string.nn.go
+++ b/query_string.nn.go
@@ -779,24 +779,6 @@ func newLexerWithInit(in io.Reader, initFun func(*lexer)) *lexer {
 			},
 		}, []int{ /* Start-of-input transitions */ -1, -1}, []int{ /* End-of-input transitions */ -1, -1}, nil},
 
-		// \^
-		{[]bool{false, true}, []func(rune) int{ // Transitions
-			func(r rune) int {
-				switch r {
-				case 94:
-					return 1
-				}
-				return -1
-			},
-			func(r rune) int {
-				switch r {
-				case 94:
-					return -1
-				}
-				return -1
-			},
-		}, []int{ /* Start-of-input transitions */ -1, -1}, []int{ /* End-of-input transitions */ -1, -1}, nil},
-
 		// \(
 		{[]bool{false, true}, []func(rune) int{ // Transitions
 			func(r rune) int {
@@ -887,6 +869,148 @@ func newLexerWithInit(in io.Reader, initFun func(*lexer)) *lexer {
 			},
 		}, []int{ /* Start-of-input transitions */ -1, -1}, []int{ /* End-of-input transitions */ -1, -1}, nil},
 
+		// \^([0-9]|[1-9][0-9]*)(\.[0-9][0-9]*)?
+		{[]bool{false, false, true, true, false, true, true, true}, []func(rune) int{ // Transitions
+			func(r rune) int {
+				switch r {
+				case 46:
+					return -1
+				case 94:
+					return 1
+				}
+				switch {
+				case 48 <= r && r <= 48:
+					return -1
+				case 49 <= r && r <= 57:
+					return -1
+				}
+				return -1
+			},
+			func(r rune) int {
+				switch r {
+				case 46:
+					return -1
+				case 94:
+					return -1
+				}
+				switch {
+				case 48 <= r && r <= 48:
+					return 2
+				case 49 <= r && r <= 57:
+					return 3
+				}
+				return -1
+			},
+			func(r rune) int {
+				switch r {
+				case 46:
+					return 4
+				case 94:
+					return -1
+				}
+				switch {
+				case 48 <= r && r <= 48:
+					return -1
+				case 49 <= r && r <= 57:
+					return -1
+				}
+				return -1
+			},
+			func(r rune) int {
+				switch r {
+				case 46:
+					return 4
+				case 94:
+					return -1
+				}
+				switch {
+				case 48 <= r && r <= 48:
+					return 5
+				case 49 <= r && r <= 57:
+					return 5
+				}
+				return -1
+			},
+			func(r rune) int {
+				switch r {
+				case 46:
+					return -1
+				case 94:
+					return -1
+				}
+				switch {
+				case 48 <= r && r <= 48:
+					return 6
+				case 49 <= r && r <= 57:
+					return 6
+				}
+				return -1
+			},
+			func(r rune) int {
+				switch r {
+				case 46:
+					return 4
+				case 94:
+					return -1
+				}
+				switch {
+				case 48 <= r && r <= 48:
+					return 5
+				case 49 <= r && r <= 57:
+					return 5
+				}
+				return -1
+			},
+			func(r rune) int {
+				switch r {
+				case 46:
+					return -1
+				case 94:
+					return -1
+				}
+				switch {
+				case 48 <= r && r <= 48:
+					return 7
+				case 49 <= r && r <= 57:
+					return 7
+				}
+				return -1
+			},
+			func(r rune) int {
+				switch r {
+				case 46:
+					return -1
+				case 94:
+					return -1
+				}
+				switch {
+				case 48 <= r && r <= 48:
+					return 7
+				case 49 <= r && r <= 57:
+					return 7
+				}
+				return -1
+			},
+		}, []int{ /* Start-of-input transitions */ -1, -1, -1, -1, -1, -1, -1, -1}, []int{ /* End-of-input transitions */ -1, -1, -1, -1, -1, -1, -1, -1}, nil},
+
+		// \^
+		{[]bool{false, true}, []func(rune) int{ // Transitions
+			func(r rune) int {
+				switch r {
+				case 94:
+					return 1
+				}
+				return -1
+			},
+			func(r rune) int {
+				switch r {
+				case 94:
+					return -1
+				}
+				return -1
+			},
+		}, []int{ /* Start-of-input transitions */ -1, -1}, []int{ /* End-of-input transitions */ -1, -1}, nil},
+
 		// ~([0-9]|[1-9][0-9]*)
 		{[]bool{false, false, true, true, true}, []func(rune) int{ // Transitions
 			func(r rune) int {
@@ -1316,58 +1440,65 @@ OUTER0:
 				return tCOLON
 			}
 		case 4:
-			{
-				logDebugTokens("BOOST")
-				return tBOOST
-			}
-		case 5:
 			{
 				logDebugTokens("LPAREN")
 				return tLPAREN
 			}
-		case 6:
+		case 5:
 			{
 				logDebugTokens("RPAREN")
 				return tRPAREN
 			}
-		case 7:
+		case 6:
 			{
 				logDebugTokens("GREATER")
 				return tGREATER
 			}
-		case 8:
+		case 7:
 			{
 				logDebugTokens("LESS")
 				return tLESS
 			}
-		case 9:
+		case 8:
 			{
 				logDebugTokens("EQUAL")
 				return tEQUAL
 			}
+		case 9:
+			{
+				lval.s = yylex.Text()[1:]
+				logDebugTokens("BOOST")
+				return tBOOST
+			}
 		case 10:
+			{
+				lval.s = "1"
+				logDebugTokens("BOOST")
+				return tBOOST
+			}
+		case 11:
 			{
 				lval.s = yylex.Text()[1:]
 				logDebugTokens("TILDENUMBER - %s", lval.s)
 				return tTILDE
 			}
-		case 11:
+		case 12:
 			{
 				lval.s = "1"
 				logDebugTokens("TILDE")
 				return tTILDE
 			}
-		case 12:
+		case 13:
 			{
 				lval.s = yylex.Text()
 				logDebugTokens("NUMBER - %s", lval.s)
 				return tNUMBER
 			}
-		case 13:
+		case 14:
 			{
 				logDebugTokens("WHITESPACE (count=%d)", len(yylex.Text())) /* eat up whitespace */
 			}
-		case 14:
+		case 15:
 			{
 				lval.s = yylex.Text()
 				logDebugTokens("STRING - %s", lval.s)
diff --git a/query_string.y b/query_string.y
index 30542a77..76e1a372 100644
--- a/query_string.y
+++ b/query_string.y
@@ -25,10 +25,10 @@ tEQUAL tTILDE
 %type <s>                tPHRASE
 %type <s>                tNUMBER
 %type <s>                tTILDE
+%type <s>                tBOOST
 %type <q>                searchBase
 %type <f>                searchSuffix
 %type <n>                searchPrefix
-%type <f>                searchBoost
 
 %%
 
@@ -233,18 +233,13 @@ tSTRING tCOLON tLESS tEQUAL tPHRASE {
 	$$ = q
 };
 
-searchBoost:
-tBOOST tNUMBER {
-	boost, _ := strconv.ParseFloat($2, 64)
-	$$ = boost
-	logDebugGrammar("BOOST %f", boost)
-};
-
 searchSuffix:
 /* empty */ {
 	$$ = 1.0
 }
 |
-searchBoost {
-
+tBOOST {
+	boost, _ := strconv.ParseFloat($1, 64)
+	$$ = boost
+	logDebugGrammar("BOOST %f", boost)
 };
diff --git a/query_string.y.go b/query_string.y.go
index b36b06fb..5f10aab8 100644
--- a/query_string.y.go
+++ b/query_string.y.go
@@ -71,57 +71,57 @@ var yyExca = [...]int{
 	-2, 5,
 }
 
-const yyNprod = 27
+const yyNprod = 26
 const yyPrivate = 57344
 
 var yyTokenNames []string
 var yyStates []string
 
-const yyLast = 33
+const yyLast = 32
 
 var yyAct = [...]int{
 
-	18, 20, 23, 17, 29, 26, 14, 3, 19, 21,
-	22, 27, 24, 16, 28, 25, 9, 11, 33, 31,
-	1, 15, 5, 6, 10, 32, 30, 2, 13, 4,
-	12, 7, 8,
+	16, 18, 21, 13, 27, 24, 3, 1, 17, 19,
+	20, 25, 22, 15, 26, 23, 9, 11, 31, 29,
+	4, 14, 5, 6, 10, 30, 28, 2, 12, 8,
+	0, 7,
 }
 var yyPact = [...]int{
 
-	16, -1000, -1000, 16, 12, -1000, -1000, -1000, -3, 5,
-	-1000, -1000, -1000, -1000, -9, -1000, -4, -1000, -14, -1000,
-	-1000, 0, -1, -1000, -1000, 14, -1000, -1000, 13, -1000,
-	-1000, -1000, -1000, -1000,
+	16, -1000, -1000, 16, 12, -1000, -1000, -1000, -6, 5,
+	-1000, -1000, -1000, -1000, -1000, -4, -14, -1000, -1000, 0,
+	-1, -1000, -1000, 14, -1000, -1000, 13, -1000, -1000, -1000,
+	-1000, -1000,
 }
 var yyPgo = [...]int{
 
-	0, 32, 30, 29, 28, 20, 27, 7,
+	0, 29, 28, 20, 7, 27, 6,
 }
 var yyR1 = [...]int{
 
-	0, 5, 6, 6, 7, 3, 3, 3, 1, 1,
+	0, 4, 5, 5, 6, 3, 3, 3, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 4, 2, 2,
+	1, 1, 1, 1, 2, 2,
 }
 var yyR2 = [...]int{
 
 	0, 1, 2, 1, 3, 0, 1, 1, 1, 2,
 	4, 1, 1, 3, 3, 3, 4, 5, 4, 5,
-	4, 5, 4, 5, 2, 0, 1,
+	4, 5, 4, 5, 0, 1,
 }
 var yyChk = [...]int{
 
-	-1000, -5, -6, -7, -3, 6, 7, -6, -1, 4,
-	12, 5, -2, -4, 9, 16, 8, 12, 4, 12,
-	5, 13, 14, 16, 12, 15, 5, 12, 15, 5,
-	12, 5, 12, 5,
+	-1000, -4, -5, -6, -3, 6, 7, -5, -1, 4,
+	12, 5, -2, 9, 16, 8, 4, 12, 5, 13,
+	14, 16, 12, 15, 5, 12, 15, 5, 12, 5,
+	12, 5,
 }
 var yyDef = [...]int{
 
-	5, -2, 1, -2, 0, 6, 7, 2, 25, 8,
-	11, 12, 4, 26, 0, 9, 0, 24, 13, 14,
-	15, 0, 0, 10, 16, 0, 20, 18, 0, 22,
-	17, 21, 19, 23,
+	5, -2, 1, -2, 0, 6, 7, 2, 24, 8,
+	11, 12, 4, 25, 9, 0, 13, 14, 15, 0,
+	0, 10, 16, 0, 20, 18, 0, 22, 17, 21,
+	19, 23,
 }
 var yyTok1 = [...]int{
 
@@ -715,24 +715,18 @@ yydefault:
 			yyVAL.q = q
 		}
 	case 24:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line query_string.y:237
-		{
-			boost, _ := strconv.ParseFloat(yyDollar[2].s, 64)
-			yyVAL.f = boost
-			logDebugGrammar("BOOST %f", boost)
-		}
-	case 25:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line query_string.y:244
+		//line query_string.y:237
 		{
 			yyVAL.f = 1.0
 		}
-	case 26:
+	case 25:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line query_string.y:248
+		//line query_string.y:241
 		{
-
+			boost, _ := strconv.ParseFloat(yyDollar[1].s, 64)
+			yyVAL.f = boost
+			logDebugGrammar("BOOST %f", boost)
 		}
 	}
 	goto yystack /* stack new state and value */