diff --git a/src/modules/ims_ocs/ims_ocs_mod.h b/src/modules/ims_ocs/ims_ocs_mod.h
index b46a29a4b44..cfddfdccc90 100644
--- a/src/modules/ims_ocs/ims_ocs_mod.h
+++ b/src/modules/ims_ocs/ims_ocs_mod.h
@@ -26,8 +26,8 @@
 
 /** callback functions */
 
-struct cdp_binds cdpb;
-cdp_avp_bind_t *cdp_avp;
+extern struct cdp_binds cdpb;
+extern cdp_avp_bind_t *cdp_avp;
 
 struct AAAMessage;