diff --git a/fdroidserver/scanner.py b/fdroidserver/scanner.py
index 93feaad0..b17f74c3 100644
--- a/fdroidserver/scanner.py
+++ b/fdroidserver/scanner.py
@@ -109,7 +109,7 @@ def get_embedded_classes(apkfile, depth=0):
     :return: set of Java classes names as string
     """
     if depth > 10:  # zipbomb protection
-        logging.error(_('max recursion depth in zip file reached: %s') % apk_zip)
+        logging.error(_('max recursion depth in zip file reached: %s') % apkfile)
         return set()
 
     apk_regex = re.compile(r'.*\.apk')