diff --git a/apps/document_indexing/exceptions.py b/apps/document_indexing/exceptions.py
new file mode 100644
index 0000000000..9e095fae11
--- /dev/null
+++ b/apps/document_indexing/exceptions.py
@@ -0,0 +1,6 @@
+class MaxSuffixCountReached(Exception):
+    """
+    Raised when there are too many documents with the same filename in the
+    same node/directory
+    """
+    pass