diff --git a/openbsc/src/gprs/gb_proxy_vty.c b/openbsc/src/gprs/gb_proxy_vty.c
index a8501d1..7ee2833 100644
--- a/openbsc/src/gprs/gb_proxy_vty.c
+++ b/openbsc/src/gprs/gb_proxy_vty.c
@@ -175,7 +175,7 @@
 	int rc;
 
 	g_cfg = cfg;
-	rc = vty_read_config_file(config_file);
+	rc = vty_read_config_file(config_file, NULL);
 	if (rc < 0) {
 		fprintf(stderr, "Failed to parse the config file: '%s'\n", config_file);
 		return rc;