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-rw-r--r--rdiff-backup/src/lazy.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/rdiff-backup/src/lazy.py b/rdiff-backup/src/lazy.py
index 4c32b5d..e583676 100644
--- a/rdiff-backup/src/lazy.py
+++ b/rdiff-backup/src/lazy.py
@@ -339,7 +339,7 @@ class ITRBranch:
def on_error(self, exc, *args):
"""This is run on any exception in start/end-process"""
self.caught_exception = 1
- if args and isinstance(args[0], tuple):
+ if args and args[0] and isinstance(args[0], tuple):
filename = os.path.join(*args[0])
elif self.index: filename = os.path.join(*self.index)
else: filename = "."