diff --git a/go/hash.go b/go/hash.go
index 32970a8c..e3b7a637 100644
--- a/go/hash.go
+++ b/go/hash.go
@@ -16,7 +16,7 @@ func randomSeed() uint32 {
 
 var xxhash = xxHash32.New(randomSeed()) // hash.Hash32
 
-func fastHash(clear bool, buf []byte) uint32 {
+func fastHash(_ bool, buf []byte) uint32 {
 	xxhash.Reset()
 	xxhash.Write(buf)
 	return xxhash.Sum32()