initialize var
diff --git a/testlimits.c b/testlimits.c
index f6c043e..8dcced5 100644
--- a/testlimits.c
+++ b/testlimits.c
@@ -1558,7 +1558,7 @@
 
 static int
 runcrazy(void) {
-    int ret = 0, res;
+    int ret = 0, res = 0;
     int old_errors, old_tests, old_leaks;
     unsigned int i;