1 files changed, 4 insertions, 0 deletions
diff --git a/renderer.c b/renderer.c
index e832c81..72b30b7 100644
--- a/renderer.c
+++ b/renderer.c
@@ -415,9 +415,12 @@ r_add_canvas(const char *bg_img_path) {
 	Canvas *c;
 
 	expect(canvas_list.idx < CANVASLIST_SIZE);
+	expect(icon_list.idx < ICONLIST_SIZE);
 
 	c = &canvas_list.items[canvas_list.idx];
 
+	c->icon_id = icon_list.idx;
+
 	c->bg = IMG_Load(bg_img_path);
 	if (!c->bg) {
 		fprintf(stderr, "failed to load %s: %s\n", bg_img_path, SDL_GetError());
@@ -439,6 +442,7 @@ r_add_canvas(const char *bg_img_path) {
 		return -1;
 	}
 
+	icon_list.idx++;
 	return canvas_list.idx++;
 }