diff --git a/hrw.go b/hrw.go
index 9059636..1156037 100644
--- a/hrw.go
+++ b/hrw.go
@@ -68,6 +68,11 @@ func Hash(key []byte) uint64 {
 	return murmur3.Sum64(key)
 }
 
+// StringHash uses murmur3 hash to return uint64
+func StringHash(key string) uint64 {
+	return murmur3.StringSum64(key)
+}
+
 // Sort receive nodes and hash, and sort it by distance
 func Sort(nodes []uint64, hash uint64) []uint64 {
 	l := len(nodes)
diff --git a/hrw_test.go b/hrw_test.go
index 934e335..bb22c81 100644
--- a/hrw_test.go
+++ b/hrw_test.go
@@ -61,7 +61,7 @@ func Example() {
 }
 
 func (h hashString) Hash() uint64 {
-	return Hash([]byte(h))
+	return StringHash(string(h))
 }
 
 func TestSortSliceByIndex(t *testing.T) {