diff --git a/dvc/repo/metrics/show.py b/dvc/repo/metrics/show.py
index e7f61024d..9c6f4d45a 100644
--- a/dvc/repo/metrics/show.py
+++ b/dvc/repo/metrics/show.py
@@ -181,6 +181,11 @@ def _collect_metrics(repo, targets, recursive, typ, xpath, branch):
                     target, outs=outs, recursive=recursive
                 )
             except OutputNotFoundError:
+                logger.debug(
+                    "DVC-file not for found for '{}' in branch '{}'".format(
+                        target, branch
+                    )
+                )
                 pass
     else:
         found = outs