diff --git a/prompt/preamble_prompt.md b/prompt/preamble_prompt.md
index 9ad5e5d..e54477c 100644
--- a/prompt/preamble_prompt.md
+++ b/prompt/preamble_prompt.md
@@ -48,7 +48,7 @@ User's Last Message:
 
 OUTPUT FORMAT:
 You must now choose the preamble message. You must produce a JSON object with a single key, "preamble", holding the preamble message as a string,
-EXACTLY as it is given (pay attention to subtleties like punctuation and copy your choice EXACTLY as it is given above).
+EXACTLY as it is given (pay attention to subtleties like punctuation and copy your choice EXACTLY as it is given above), with one exception:
 Any text enclosed in square brackets [like this] in the preamble choices represents a placeholder that should be replaced with the actual information based on the specific situation, user name, location, or context.
 
 For ALL OTHER scenarios: