Index: apps/app_voicemail.c
===================================================================
--- apps/app_voicemail.c	(revision 206144)
+++ apps/app_voicemail.c	(working copy)
@@ -686,9 +686,13 @@
 		if (res > 0) {
 			ast_copy_string(vmu->password, password, sizeof(vmu->password));
 			res = 0;
-		} else if (!res) {
+		} else if (!strcmp(vmu->password, password)) {
+			/* No change occurred */
+			res = 0;
+		} else {
 			res = -1;
 		}
+
 		return res;
 	}
 	return -1;