diff --git a/torch_geometric/nn/nlp/txt2kg.py b/torch_geometric/nn/nlp/txt2kg.py
index cbd4b6858332..c356e61a6965 100644
--- a/torch_geometric/nn/nlp/txt2kg.py
+++ b/torch_geometric/nn/nlp/txt2kg.py
@@ -139,8 +139,8 @@ def add_doc_2_KG(
 def get_chunks(s, maxlength):
     start = 0
     end = 0
-    while start + maxlength  < len(s) and end != -1:
+    while start + maxlength < len(s) and end != -1:
         end = s.rfind(" ", start, start + maxlength + 1)
         yield s[start:end]
-        start = end +1
+        start = end + 1
     yield s[start:]