diff --git a/units/en/_toctree.yml b/units/en/_toctree.yml
index 4eb75cf..3b6f440 100644
--- a/units/en/_toctree.yml
+++ b/units/en/_toctree.yml
@@ -155,7 +155,7 @@
   - local: unit6/variance-problem
     title: The Problem of Variance in Reinforce
   - local: unit6/advantage-actor-critic
-    title: Advantage Actor-Critic (A2C)
+    title: Advantage Actor Critic (A2C)
   - local: unit6/hands-on
     title: Advantage Actor Critic (A2C) using Robotics Simulations with PyBullet and Panda-Gym 🤖
   - local: unit6/conclusion