diff --git a/lld/test/ELF/undef-shared.s b/lld/test/ELF/undef-shared.s
index ea7f06e5d363..ed9103571443 100644
--- a/lld/test/ELF/undef-shared.s
+++ b/lld/test/ELF/undef-shared.s
@@ -1,5 +1,5 @@
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
-# RUN: not ld.lld %t.o -o %t 2>&1 | FileCheck %s
+# RUN: not ld.lld %t.o -o %t.so -shared 2>&1 | FileCheck %s
 
 # CHECK: undefined symbol: hidden in {{.*}}
 .global hidden