diff --git a/src/idevice.c b/src/idevice.c
index c8574fc..3984583 100644
--- a/src/idevice.c
+++ b/src/idevice.c
@@ -296,6 +296,7 @@
 	if (!event_ctx) {
 		return IDEVICE_E_SUCCESS;
 	}
+	event_ctx->callback = NULL;
 	return idevice_events_unsubscribe(event_ctx);
 }