diff --git a/src/speller2_worker.py b/src/speller2_worker.py
index 0b55c46c96973f203498f16165ff88f08615be07..6bc142e5e580b2e97205187b84e6a5daa07f78f4 100755
--- a/src/speller2_worker.py
+++ b/src/speller2_worker.py
@@ -34,7 +34,7 @@ class Speller2Worker(nlp_ws.NLPWorker):
 
     @classmethod
     def _read_file(cls, input_path):
-        """Reading text from input file"""
+        """Reading text from input file."""
         with open(input_path, 'r', encoding='utf-8') as f:
             content = f.read()