diff --git a/Makefile b/Makefile
index 470270d..df5537a 100644
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@ test:
 check:
 	crystal tool format --check
 	./bin/ameba
-	./scripts/linewidth.sh
+	./dev/linewidth.sh
 
 install:
 	cp mango $(INSTALL_DIR)/mango
diff --git a/scripts/linewidth.sh b/dev/linewidth.sh
similarity index 100%
rename from scripts/linewidth.sh
rename to dev/linewidth.sh