diff --git a/reasoning_gym/code/bf.py b/reasoning_gym/code/bf.py
index a8528843..e7def05e 100644
--- a/reasoning_gym/code/bf.py
+++ b/reasoning_gym/code/bf.py
@@ -127,10 +127,10 @@ int main() {{
             if entry["answer"] in answer.splitlines():
                 # We can be quite confident that the correct answer was given
                 # It was likely just given alongside an explanation
-                return 0.9 * len(answer) / len(entry["answer"])
+                return max(0.9 * len(answer) / len(entry["answer"]), 0.1)
             if entry["answer"] in answer:
                 # Since answers are English words, some risk of the response coincidentally containing the answer
-                return 0.5 * len(answer) / len(entry["answer"])
+                return max(0.5 * len(answer) / len(entry["answer"]), 0.1)
             return 0.01
         else:
             return 1.0  # Yay