diff --git a/.drone.yml b/.drone.yml
index 759c37e..bfc810c 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -19,7 +19,7 @@ steps:
     - apk add --no-cache build-base curl unzip
     - apk add --no-cache lua5.1 lua5.1-dev luarocks5.1
     - luarocks-5.1 install luacheck
-    - luacheck sources --allow_defined
+    - luacheck sources --allow-defined
 
 - name: build
   image: alpine