diff --git a/src/chonkie/refinery/overlap.py b/src/chonkie/refinery/overlap.py
index 7b4d248..5c096c8 100644
--- a/src/chonkie/refinery/overlap.py
+++ b/src/chonkie/refinery/overlap.py
@@ -171,7 +171,7 @@ def _suffix_overlap_token_exact(self, chunk: Chunk) -> Optional[Context]:
             return None
 
         # Take 6x context_size characters to ensure enough tokens
-        char_window = min(len(chunk.text), self.context_size * self._AVG_CHAR_PER_TOKEN)
+        char_window = min(len(chunk.text), int(self.context_size * self._AVG_CHAR_PER_TOKEN))
         text_portion = chunk.text[:char_window]
 
         # Get exact token boundaries