diff --git a/docs/10.md b/docs/10.md
index 395de4a5bfc42c1b23f0b6199c8520d37545ead1..ecbbf0cb381730cb51dbbe0f26f93fb2d4f057e5 100644
--- a/docs/10.md
+++ b/docs/10.md
@@ -554,4 +554,4 @@ $$
 
 **练习 6.7** 这里是对离散动作空间使用自动微分来执行最大似然估计的伪代码。
 
-{\tt {logits = policy.predictions(states)}}
\ No newline at end of file
+{\tt logits = policy.predictions(states)}
\ No newline at end of file