diff --git a/Makefile b/Makefile
index 0917cd0..9031ee8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,10 @@
 
 all: genponies
 
-genpngs:
+genpngs: ponies/*
 	mkdir genpngs
 	unpixelterm -d genpngs ponies/*.pony
 
-genponies:
-	mkdir ponysay/ponies
+genponies: pngs/*
 	pixelterm -d ponysay/ponies pngs/*.png