diff --git a/libweston/compositor.c b/libweston/compositor.c
index 67b5d283..4816f33e 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -2457,7 +2457,7 @@ output_repaint_timer_handler(void *data)
 	struct weston_output *output;
 	struct timespec now;
 	void *repaint_data = NULL;
-	int ret;
+	int ret = 0;
 
 	weston_compositor_read_presentation_clock(compositor, &now);