diff --git a/Makefile b/Makefile
index 67bdd19..d1f46ad 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,12 @@
 all: src/countries.js
 
-src/countries.js:
+countries:
+	git submodule init
+	git submodule update
+
+src/countries.js: countries
 	python scripts/generate_countries_list.py countries/countries.json > src/countries.js
 
 clean:
 	rm -rf src/countries.js
+	rm -rf countries