diff --git a/app/server/utils.py b/app/server/utils.py
index 38055ef4..439cc870 100644
--- a/app/server/utils.py
+++ b/app/server/utils.py
@@ -344,7 +344,7 @@ class PlainTextParser(FileParser):
         while True:
             batch = list(itertools.islice(file, IMPORT_BATCH_SIZE))
             if not batch:
-                raise StopIteration
+                break
             yield [{'text': line.strip()} for line in batch]