diff --git a/internal/wire/wire.go b/internal/wire/wire.go
index b585c8d5..6ec1f3f7 100644
--- a/internal/wire/wire.go
+++ b/internal/wire/wire.go
@@ -845,7 +845,7 @@ func typeVariableName(t types.Type, defaultName string, transform func(string) s
 
 	// See if there's an unambiguous name; if so, use it.
 	for _, name := range names {
-		if !reservedKeyword[name] && !collides(name) {
+		if !token.Lookup(name).IsKeyword() && !collides(name) {
 			return name
 		}
 	}
@@ -903,40 +903,10 @@ func export(name string) string {
 	return sbuf.String()
 }
 
-// reservedKeyword is a set of Go's reserved keywords:
-// https://golang.org/ref/spec#Keywords
-var reservedKeyword = map[string]bool{
-	"break":       true,
-	"case":        true,
-	"chan":        true,
-	"const":       true,
-	"continue":    true,
-	"default":     true,
-	"defer":       true,
-	"else":        true,
-	"fallthrough": true,
-	"for":         true,
-	"func":        true,
-	"go":          true,
-	"goto":        true,
-	"if":          true,
-	"import":      true,
-	"interface":   true,
-	"map":         true,
-	"package":     true,
-	"range":       true,
-	"return":      true,
-	"select":      true,
-	"struct":      true,
-	"switch":      true,
-	"type":        true,
-	"var":         true,
-}
-
 // disambiguate picks a unique name, preferring name if it is already unique.
 // It also disambiguates against Go's reserved keywords.
 func disambiguate(name string, collides func(string) bool) string {
-	if !reservedKeyword[name] && !collides(name) {
+	if !token.Lookup(name).IsKeyword() && !collides(name) {
 		return name
 	}
 	buf := []byte(name)
@@ -947,7 +917,7 @@ func disambiguate(name string, collides func(string) bool) string {
 	for n := 2; ; n++ {
 		buf = strconv.AppendInt(buf[:base], int64(n), 10)
 		sbuf := string(buf)
-		if !reservedKeyword[sbuf] && !collides(sbuf) {
+		if !token.Lookup(sbuf).IsKeyword() && !collides(sbuf) {
 			return sbuf
 		}
 	}