diff --git a/types/resolve.go b/types/resolve.go
index 7ec14e065..cf4025c85 100644
--- a/types/resolve.go
+++ b/types/resolve.go
@@ -3,6 +3,7 @@ package types
 import (
 	"errors"
 	"fmt"
+	"regexp"
 	"strconv"
 	"strings"
 
@@ -570,6 +571,13 @@ func ParseFunction(s string) (f []string, r []string, err error) {
 	return
 }
 
+var (
+	rxconst      = regexp.MustCompile(`\bconst\b`)
+	rxvolatile   = regexp.MustCompile(`\bvolatile\b`)
+	rxUUrestrict = regexp.MustCompile(`\b__restrict\b`)
+	rxrestrict   = regexp.MustCompile(`\brestrict\b`)
+)
+
 // CleanCType - remove from C type not Go type
 func CleanCType(s string) (out string) {
 	out = s
@@ -583,10 +591,10 @@ func CleanCType(s string) (out string) {
 	out = strings.Replace(out, "( *)", "(*)", -1)
 
 	// Remove any whitespace or attributes that are not relevant to Go.
-	out = strings.Replace(out, "const", "", -1)
-	out = strings.Replace(out, "volatile", "", -1)
-	out = strings.Replace(out, "__restrict", "", -1)
-	out = strings.Replace(out, "restrict", "", -1)
+	out = rxconst.ReplaceAllLiteralString(out, "")
+	out = rxvolatile.ReplaceAllLiteralString(out, "")
+	out = rxUUrestrict.ReplaceAllLiteralString(out, "")
+	out = rxrestrict.ReplaceAllLiteralString(out, "")
 	out = strings.Replace(out, "\t", "", -1)
 	out = strings.Replace(out, "\n", "", -1)
 	out = strings.Replace(out, "\r", "", -1)