diff --git a/test/cfg/posix.c b/test/cfg/posix.c
index ad4edbd01..90428bc3b 100644
--- a/test/cfg/posix.c
+++ b/test/cfg/posix.c
@@ -292,6 +292,8 @@ void ignoredReturnValue(void *addr, int fd)
     getuid();
     // cppcheck-suppress ignoredReturnValue
     access("filename", 1);
+    // no ignoredReturnValue shall be shown for
+    setuid(42);
 }