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