diff --git a/clang/test/Driver/fuzzer.c b/clang/test/Driver/fuzzer.c
index de1d51d0d88ef..14caf7690057d 100644
--- a/clang/test/Driver/fuzzer.c
+++ b/clang/test/Driver/fuzzer.c
@@ -18,7 +18,7 @@
 
 
 // Check that we don't link in libFuzzer.a when producing a shared object.
-// RUN: %clang -fsanitize=fuzzer %s -shared -o %t.so -### 2>&1 | FileCheck --check-prefixes=CHECK-NOLIB-SO %s
+// RUN: %clang --target=x86_64-linux-gnu -fsanitize=fuzzer %s -shared -### 2>&1 | FileCheck --check-prefixes=CHECK-NOLIB-SO %s
 // CHECK-NOLIB-SO-NOT: libclang_rt.libfuzzer
 
 // Check that we don't link in libFuzzer when compiling with -fsanitize=fuzzer-no-link.
@@ -26,9 +26,6 @@
 // CHECK-NOLIB-NOT: libclang_rt.libfuzzer
 // CHECK-COV: -fsanitize-coverage-inline-8bit-counters
 
-// RUN: %clang -fsanitize=fuzzer -fsanitize-coverage=trace-pc %s -### 2>&1 | FileCheck --check-prefixes=CHECK-MSG %s
-// CHECK-MSG-NOT: argument unused during compilation
-
 // Check that we respect whether thes tandard library should be linked
 // statically.
 //