diff --git a/clang/test/CoverageMapping/coroutine.cpp b/clang/test/CoverageMapping/coroutine.cpp
index ec1d64e0f970..c149eefd1f01 100644
--- a/clang/test/CoverageMapping/coroutine.cpp
+++ b/clang/test/CoverageMapping/coroutine.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++14 -emit-llvm -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping %s | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++14 -emit-llvm -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping %s -o - | FileCheck %s
 
 namespace std::experimental {
 template <typename... T>