diff --git a/aider/mdstream.py b/aider/mdstream.py
index 2a992fe9b..dc2ff6e58 100755
--- a/aider/mdstream.py
+++ b/aider/mdstream.py
@@ -13,13 +13,13 @@ from aider.dump import dump  # noqa: F401
 _text_prefix = """
 # Header
 
-Lorem Ipsum is simply dummy text of the printing and typesetting industry. 
-Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, 
-when an unknown printer took a galley of type and scrambled it to make a type 
-specimen book. It has survived not only five centuries, but also the leap into 
-electronic typesetting, remaining essentially unchanged. It was popularised in 
-the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, 
-and more recently with desktop publishing software like Aldus PageMaker 
+Lorem Ipsum is simply dummy text of the printing and typesetting industry.
+Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,
+when an unknown printer took a galley of type and scrambled it to make a type
+specimen book. It has survived not only five centuries, but also the leap into
+electronic typesetting, remaining essentially unchanged. It was popularised in
+the 1960s with the release of Letraset sheets containing Lorem Ipsum passages,
+and more recently with desktop publishing software like Aldus PageMaker
 including versions of Lorem Ipsum.