diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 2835ed935..4c1b7a854 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -256,6 +256,7 @@ class Coder:
         summarizer=None,
         total_cost=0.0,
         map_refresh="auto",
+        cache_prompts=False,
     ):
         self.commit_before_message = []
         self.aider_commit_hashes = set()