diff --git a/test/test_config.c b/test/test_config.c
index 4657606..e40f61c 100644
--- a/test/test_config.c
+++ b/test/test_config.c
@@ -164,7 +164,7 @@ void get_global_options(void)
                AXL_KEY_CONFIG_DEBUG);
         exit(EXIT_FAILURE);
     }
-    if (new_axl_debug != !old_axl_file_buf_size) {
+    if (new_axl_debug != !old_axl_debug) {
         printf("AXL_Config returned unexpected value %d for %s. Expected %d.\n",
                new_axl_debug, AXL_KEY_CONFIG_DEBUG, !old_axl_debug);
         exit(EXIT_FAILURE);