diff --git a/apps/app_chanspy.c b/apps/app_chanspy.c
index 1ac8ef5837..18e4972a5e 100644
--- a/apps/app_chanspy.c
+++ b/apps/app_chanspy.c
@@ -513,7 +513,7 @@ static int common_exec(struct ast_channel *chan, const struct ast_flags *flags,
 	char *ptr;
 	int num;
 	int num_spyed_upon = 1;
-	struct chanspy_ds chanspy_ds;
+	struct chanspy_ds chanspy_ds = { 0, };
 
 	ast_mutex_init(&chanspy_ds.lock);