--- a/ucx/test.c	Fri Sep 22 20:19:00 2017 +0200
+++ b/ucx/test.c	Fri Sep 22 20:42:33 2017 +0200
@@ -86,6 +86,6 @@
         elem->test(suite, output);
     }
     fwrite("\nAll test completed.\n", 1, 21, output);
-    fprintf(output, "  Total:   %d\n  Success: %d\n  Failure: %d\n",
+    fprintf(output, "  Total:   %u\n  Success: %u\n  Failure: %u\n",
             suite->success+suite->failure, suite->success, suite->failure);
 }