diff --git a/src/names.c b/src/names.c
index f6ad9fe0..f4dc978c 100644
--- a/src/names.c
+++ b/src/names.c
@@ -1767,6 +1767,11 @@ collect_and_sort_names (void)
 		  name->found_count++;
 		  add_hierarchy_to_namelist (&st, name);
 		}
+	      else
+		{
+		  errno = ENOTDIR;
+		  open_diag (name->name);
+		}
 	    }
 	}