diff --git a/docker/openappsec-kong-plugin/Dockerfile b/docker/openappsec-kong-plugin/Dockerfile
index 0b6e6bd..cd131d1 100755
--- a/docker/openappsec-kong-plugin/Dockerfile
+++ b/docker/openappsec-kong-plugin/Dockerfile
@@ -1,4 +1,3 @@
-ARG VERSION
 FROM kong:$VERSION
 
 USER root