diff --git a/tuf/repository_tool.py b/tuf/repository_tool.py
index b1ebbe10..059fa40a 100755
--- a/tuf/repository_tool.py
+++ b/tuf/repository_tool.py
@@ -2706,8 +2706,8 @@ def _locate_and_update_target_in_bin(self, target_filepath, method_name):
 
     # Log warning if 'target_filepath' is not located in the repository's
     # targets directory.
-    if not os.isfile(os.path.join(self._targets_directory, target_filepath):
-      logger.warning(repr(filepath) + ' is not located in the'
+    if not os.path.isfile(os.path.join(self._targets_directory, target_filepath)):
+      logger.warning(repr(target_filepath) + ' is not located in the'
           ' repository\'s targets directory: ' + repr(self._targets_directory))
 
     # Determine the hash prefix of 'target_path' by computing the digest of