diff --git a/apps/app_voicemail.c b/apps/app_voicemail.c
index 67aef04d76..75a96782fd 100644
--- a/apps/app_voicemail.c
+++ b/apps/app_voicemail.c
@@ -30,6 +30,7 @@
 
 /*** MODULEINFO
 	<depend>res_adsi</depend>
+	<depend>res_smdi</depend>
  ***/
 
 /*** MAKEOPTS
diff --git a/channels/chan_zap.c b/channels/chan_zap.c
index bcf823451e..c0e9a5bc82 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>