diff --git a/package_alerts/package_alerts b/package_alerts/package_alerts
index f3261aef5bc4baf12890f435011d0aad9af5365e..4ae354ff5b66a6dcd5ce8f153f7e33410191cc68 100755
--- a/package_alerts/package_alerts
+++ b/package_alerts/package_alerts
@@ -128,7 +128,7 @@ def call_api(token, url, params=None, stream=False):
 
 def get_upstream(token, feed):
     """retrieve full list of packages from a cset"""
-    arch = re.match(r"(\w+-[0-9]-\w+-)(\w+)(-\w+-\w+)", line).group(2)
+    arch = re.match(r"(\w+-[0-9]-\w+-)(\w+)(-\w+-\w+)", feed).group(2)
     url = (
         f"https://api.access.redhat.com/management/v1/packages/cset/{feed}/arch/{arch}"
     )