diff --git a/apps/app_voicemail.c b/apps/app_voicemail.c
index 58a26636c0..d6c38e56aa 100644
--- a/apps/app_voicemail.c
+++ b/apps/app_voicemail.c
@@ -41,6 +41,7 @@ c-client (http://www.washington.edu/imap/
  */
 
 /*** MODULEINFO
+	<depend>res_smdi</depend>
  ***/
 
 /*** MAKEOPTS
diff --git a/channels/chan_zap.c b/channels/chan_zap.c
index e5e28e55c1..24d0bf0fa9 100644
--- a/channels/chan_zap.c
+++ b/channels/chan_zap.c
@@ -38,6 +38,7 @@
  */
 
 /*** MODULEINFO
+	<depend>res_smdi</depend>
 	<depend>zaptel_vldtmf</depend>
 	<depend>zaptel</depend>
 	<depend>tonezone</depend>