diff --git a/openbsc/src/libgb/common_vty.c b/openbsc/src/libgb/common_vty.c
index 269df8c..a16e995 100644
--- a/openbsc/src/libgb/common_vty.c
+++ b/openbsc/src/libgb/common_vty.c
@@ -61,3 +61,5 @@
 	}
 	return CMD_SUCCESS;
 }
+
+int DNS, DBSSGP;