diff --git a/src/math/x86_64/lrintl.s b/src/math/x86_64/lrintl.s
index 0e2c7712..d587b12b 100644
--- a/src/math/x86_64/lrintl.s
+++ b/src/math/x86_64/lrintl.s
@@ -2,6 +2,6 @@
 .type lrintl,@function
 lrintl:
 	fldt 8(%rsp)
-	fistpl 8(%rsp)
-	movslq 8(%rsp),%rax
+	fistpll 8(%rsp)
+	mov 8(%rsp),%rax
 	ret