diff --git a/encode_amd64.go b/encode_amd64.go
index 2a56fb5..150d91b 100644
--- a/encode_amd64.go
+++ b/encode_amd64.go
@@ -26,4 +26,4 @@
 // encodeBlock has the same semantics as in encode_other.go.
 //
 //go:noescape
-func encodeBlock(dst, src []byte) (d int)
\ No newline at end of file
+func encodeBlock(dst, src []byte) (d int)