diff --git a/apps/app_minivm.c b/apps/app_minivm.c
index c7ab7a90d1037fc35a9f23ead461a9281fa3960c..2bc3da3b77f8f4aa53d7367fa82f8600e871b855 100644
--- a/apps/app_minivm.c
+++ b/apps/app_minivm.c
@@ -1982,7 +1982,7 @@ static int minivm_accmess_exec(struct ast_channel *chan, void *data)
 	char filename[PATH_MAX];
 	char tmp[PATH_MAX];
 	char *domain;
-	char *tmpptr;
+	char *tmpptr = NULL;
 	struct minivm_account *vmu;
 	char *username = argv[0];
 	struct ast_flags flags = { 0 };