diff --git a/src/pixman-renderer.c b/src/pixman-renderer.c
index 85fcd4c2a..d6f638d08 100644
--- a/src/pixman-renderer.c
+++ b/src/pixman-renderer.c
@@ -660,7 +660,7 @@ pixman_renderer_init(struct weston_compositor *ec)
 {
 	struct pixman_renderer *renderer;
 
-	renderer = malloc(sizeof *renderer);
+	renderer = calloc(1, sizeof *renderer);
 	if (renderer == NULL)
 		return -1;