diff --git a/x86_64/sha256_xmm_amd64.asm b/x86_64/sha256_xmm_amd64.asm
index 6c203e8..08a5f8d 100644
--- a/x86_64/sha256_xmm_amd64.asm
+++ b/x86_64/sha256_xmm_amd64.asm
@@ -314,7 +314,7 @@ sha256_sse2_64_new:
     movdqa    [hash1+7*16], rH
 
     mov       data, hash1
-    mov       init, sha256_init
+    mov       init, qword sha256_init
 
     SHA_256