diff --git a/scripts/create-mkspec.sh b/scripts/create-mkspec.sh
index f876c85f..c1968a36 100644
--- a/scripts/create-mkspec.sh
+++ b/scripts/create-mkspec.sh
@@ -41,21 +41,14 @@ subpackage_description()
 
 os_cascade()
 {
-	# might want to run python3 path/to/jw-projects.py --os=suse-tumbleweed projects os-cascade
-	# or turn this into a python script and use jw-projects.py as a module.
-
-	if [ "$DISTRIBUTION" ]; then
-		echo os linux $DISTRIBUTION | sed 's/\([^-]\+\)-\([^-]\+\)/\1 \1-\2/g'
-	else
-		echo os linux
-	fi
+	/usr/bin/python3 $JWB_SCRIPT_DIR/jw-projects.py projects os-cascade
 }
 
 # -- here we go
 
 echo "== running $0" "$@" >&2
-
 export LANG=POSIX
+export JWB_SCRIPT_DIR=$JWB_SCRIPT_DIR
 dir=`dirname $0`
 inifile="$1"
 . $dir/ini-tools.sh