diff --git a/icinga-build-upload-aptly-subscription b/icinga-build-upload-aptly-subscription
index baf9e28675a20ca005a7f2c54d9186704b67d118..7af00e1659d17fb4aa1dc05e11d24cb433a8e398 100755
--- a/icinga-build-upload-aptly-subscription
+++ b/icinga-build-upload-aptly-subscription
@@ -32,7 +32,7 @@ def scan_dir(path, pattern):
 
 def detect_rpm(path):
     rpms = scan_dir(path, '*.rpm')
-    if len(rpm) == 0:
+    if len(rpms) == 0:
         return []
 
     return rpms