diff --git a/test/Feature/forwardreftest.ll b/test/Feature/forwardreftest.ll
index edb1f281eba..27e5657d2a1 100644
--- a/test/Feature/forwardreftest.ll
+++ b/test/Feature/forwardreftest.ll
@@ -1,3 +1,4 @@
+; RUN: llvm-upgrade < %s | llvm-as | llvm-ds -o /dev/null -f &&
 ; RUN: llvm-upgrade < %s | llvm-as | llvm-dis > %t1.ll
 ; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
 ; RUN: diff %t1.ll %t2.ll