diff --git a/script-library/docker-redhat.sh b/script-library/docker-redhat.sh
index f6871250..85d9fdcf 100755
--- a/script-library/docker-redhat.sh
+++ b/script-library/docker-redhat.sh
@@ -102,7 +102,7 @@ else
             exit
         fi
     else
-        RHEL_COMPAT_VER=$VERSION_ID
+        RHEL_COMPAT_VER=${VERSION_ID%%.*}
     fi
 fi