diff --git a/aider/coders/wholefile_prompts.py b/aider/coders/wholefile_prompts.py
index 68882f66f..53aa2a60c 100644
--- a/aider/coders/wholefile_prompts.py
+++ b/aider/coders/wholefile_prompts.py
@@ -30,6 +30,7 @@ Every *file listing* MUST use this format:
 - Final line: closing {fence[1]}
 
 To suggest changes to a file you MUST return a *file listing* that contains the entire content of the file.
+*NEVER* skip, omit or elide content from a *file listing* using "..." or by adding comments like "... rest of code..."!
 Create a new file you MUST return a *file listing* which includes an appropriate filename, including any appropriate path.
 """