diff --git a/Makefile b/Makefile
index 123c16e1a4..a563a059a1 100644
--- a/Makefile
+++ b/Makefile
@@ -41,6 +41,12 @@ build-dist: build
 
 watch: clean
 	make clean-lib
+
+	# Ensure that build artifacts for types are created during local
+	# development too.
+	BABEL_ENV=development ./node_modules/.bin/gulp build
+	node ./packages/babel-types/scripts/generateTypeHelpers.js
+	node scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
 	BABEL_ENV=development ./node_modules/.bin/gulp watch
 
 flow: