diff --git a/infer/lib/clang_wrappers/clang_wrapper b/infer/lib/clang_wrappers/clang_wrapper
index b6f09e0b9..b088f54cd 100755
--- a/infer/lib/clang_wrappers/clang_wrapper
+++ b/infer/lib/clang_wrappers/clang_wrapper
@@ -35,6 +35,8 @@ done
 
 # Never error on warnings. Clang is often more strict than Apple's version.
 # These arguments are appended to override previous opposite settings.
-COMMAND+=("-Wno-error" "-Qunused-arguments")
+# How it's done: surpress all the warnings, since there are no warnings,
+# compiler can't elevate them to error level.
+COMMAND+=("-Wno-everything")
 
 "${COMMAND[@]}"
diff --git a/infer/tests/codetoanalyze/objc/errors/category_procdesc/main.c b/infer/tests/codetoanalyze/objc/errors/category_procdesc/main.c
index d52da28a3..ac41876d5 100644
--- a/infer/tests/codetoanalyze/objc/errors/category_procdesc/main.c
+++ b/infer/tests/codetoanalyze/objc/errors/category_procdesc/main.c
@@ -8,7 +8,7 @@
 */
 
 #import "EOCPerson.h"
-#include <stdlib.h>
+
 
 int main() {
     EOCPerson *person = [[EOCPerson alloc] init];