diff --git a/tests/logging/logging_test.c b/tests/logging/logging_test.c
index 6c5a8f2..3cc6c5b 100644
--- a/tests/logging/logging_test.c
+++ b/tests/logging/logging_test.c
@@ -115,6 +115,7 @@
 	log_parse_category_mask(stderr_target, "DLGLOBAL,1");
 	DEBUGP(osmo_log_info->num_cat + 1, "You should see this on DLGLOBAL (a)\n");
 	DEBUGP(osmo_log_info->num_cat + 100, "You should see this on DLGLOBAL (b)\n");
+	DEBUGP(osmo_log_info->num_cat, "You should see this on DLGLOBAL (c)\n");
 
 	return 0;
 }