diff --git a/MEV_on_Optimism/README.md b/MEV_on_Optimism/README.md
index 8a66c4b..d859216 100644
--- a/MEV_on_Optimism/README.md
+++ b/MEV_on_Optimism/README.md
@@ -4,7 +4,7 @@
 
 ### in this dir
 
-* [optimism blockchain](optimism.md)
+* [optimistic rollups](optimistic_rollups.md)