diff --git a/yum-sync.py b/yum-sync.py
index fb338f8..7d347e5 100755
--- a/yum-sync.py
+++ b/yum-sync.py
@@ -196,8 +196,9 @@ def main():
     args = parser.parse_args()
 
     raw_os_list = args.os_version.split(",")
-    os_list = replace_os_template(raw_os_list)
-    for os_version in os_list:
+    raw_os_list = replace_os_template(raw_os_list)
+    os_list = []
+    for os_version in raw_os_list:
         if "-" in os_version and "-stream" not in os_version:
             dash = os_version.index("-")
             os_list = os_list + [