--- apps/app_voicemail.c	(Asterisk 15.3)
+++ apps/app_voicemail.c	(working copy)
@@ -13285,3 +13285,3 @@ static int manager_list_voicemail_users(
 		char dirname[256];
-		int new, old;
+		int new = 0, old = 0;
 		inboxcount(vmu->mailbox, &new, &old);