diff --git a/src/pebblisp.c b/src/pebblisp.c
index 400acc7..bfea7da 100644
--- a/src/pebblisp.c
+++ b/src/pebblisp.c
@@ -771,8 +771,7 @@ int main(int argc, const char* argv[])
     setGlobal(&env);
 
     if (argc == 2 && strcmp(argv[1], "--run-tests") == 0) {
-        runTests();
-        return 0;
+        return runTests();
     }
 
     struct sigaction action;