diff --git a/llvm/lib/Fuzzer/test/afl-driver.test b/llvm/lib/Fuzzer/test/afl-driver.test
index 6cff8e34ec3d..9f88cd205989 100644
--- a/llvm/lib/Fuzzer/test/afl-driver.test
+++ b/llvm/lib/Fuzzer/test/afl-driver.test
@@ -3,6 +3,7 @@ RUN: unset AFL_DRIVER_STDERR_DUPLICATE_FILENAME
 RUN: AFLDriverTest
 
 ; Test that specifying an invalid file causes a crash.
+RUN: ls %T/
 RUN: AFL_DRIVER_STDERR_DUPLICATE_FILENAME="%T" not --crash AFLDriverTest
 
 ; Test that a file is created when specified as the duplicate stderr.