diff --git a/Makefile b/Makefile
index 8201808..bf24836 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,4 @@
 default:
+	mkdir imgs
 	cargo r
 	ffmpeg -framerate 25 -i imgs/%d.png -crf 20 -pix_fmt yuv420p output.mp4