diff --git a/aider/coders/editblock_coder.py b/aider/coders/editblock_coder.py
index 2c9706a74..c64902a61 100644
--- a/aider/coders/editblock_coder.py
+++ b/aider/coders/editblock_coder.py
@@ -102,6 +102,7 @@ def replace_most_similar_chunk(whole, part, replace):
     except ValueError:
         pass
 
+    return
     # Try fuzzy matching
     res = replace_closest_edit_distance(whole_lines, part, part_lines, replace_lines)
     if res:
diff --git a/aider/coders/editblock_prompts.py b/aider/coders/editblock_prompts.py
index 05f26b2a8..7f0e7eb51 100644
--- a/aider/coders/editblock_prompts.py
+++ b/aider/coders/editblock_prompts.py
@@ -36,7 +36,7 @@ Every *edit block* must be fenced with {fence[0]}...{fence[1]} with the correct
 Every *edit block* must start with the full path! *NEVER* propose edit blocks for *read-only* files.
 The ORIGINAL section must be an *exact set of sequential lines* from the file:
 - NEVER SKIP LINES!
-- Include all original leading spaces and indentation!
+- NEVER SKIP LEADING WHITESPACE FROM LINES!
 
 Edits to different parts of a file each need their own *edit block*.