diff --git a/openbsc/src/bs11_config.c b/openbsc/src/bs11_config.c
index 44cef0a..71e4aed 100644
--- a/openbsc/src/bs11_config.c
+++ b/openbsc/src/bs11_config.c
@@ -872,3 +872,8 @@
 
 	exit(0);
 }
+
+/* dummy to be able to compile */
+void gsm_net_update_ctype(struct gsm_network *net)
+{
+}