diff --git a/bandit/core/manager.py b/bandit/core/manager.py
index 034bafb7a..12f4cbfdb 100644
--- a/bandit/core/manager.py
+++ b/bandit/core/manager.py
@@ -247,6 +247,7 @@ def run_tests(self):
             try:
                 if fname == '-':
                     sys.stdin = _Seeker(os.fdopen(sys.stdin.fileno(), 'rb', 0))
+                    new_files_list = ["<stdin>" if x=="-" else x for x in new_files_list]
                     self._parse_file('<stdin>', sys.stdin, new_files_list)
                 else:
                     with open(fname, 'rb') as fdata: