diff --git a/crypto/bn/asm/x86_64-mont5.pl b/crypto/bn/asm/x86_64-mont5.pl
index 265ee7d13a5e259b99656b193b5858758c9ccdac..c107df95f5339ddb887317d09cbf47e80c54f2ad 100755
--- a/crypto/bn/asm/x86_64-mont5.pl
+++ b/crypto/bn/asm/x86_64-mont5.pl
@@ -1001,7 +1001,7 @@ $code.=<<___;
 	call	__bn_sqr8x_internal
 	call	__bn_sqr8x_internal
 
-	mov	%xmm2,$nptr
+	movq	%xmm2,$nptr
 	movq	%xmm4,$bptr
 	mov	$aptr,$rptr
 	mov	40(%rsp),%rax