diff --git a/Makefile b/Makefile
index 0091328..4abceab 100644
--- a/Makefile
+++ b/Makefile
@@ -7,4 +7,6 @@ swagger-codegen-cli.jar:
 
 doc:
 	mkdir -p html
-	java -jar swagger-codegen-cli.jar generate -i openkarotz-openapi.json -l html -o html
\ No newline at end of file
+	java -jar swagger-codegen-cli.jar generate -i openkarotz-openapi.json -l html -o html
+clean:
+	rm -rf doc