diff --git a/Containerfile b/Containerfile
index 19c314d..c89f0f9 100644
--- a/Containerfile
+++ b/Containerfile
@@ -37,6 +37,7 @@ ARG SOURCE_SUFFIX="-main"
 
 ## SOURCE_TAG arg must be a version built for the specific image: eg, 39, 40, gts, latest
 ARG SOURCE_TAG="40"
+ARG FEDORA_MAJOR_VERSION=${FEDORA_MAJOR_VERSION}
 
 
 ### 2. SOURCE IMAGE