diff --git a/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll b/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll
index 3cf79c6dc1a..90655787a7b 100644
--- a/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll
+++ b/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll
@@ -1,3 +1,4 @@
+; RUN: llvm-as < %s | llc
 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:16-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:16:16-f128:128:128"
 target triple = "s390x-ibm-linux-gnu"