diff --git a/README.md b/README.md
index dbd8231..a6249c9 100644
--- a/README.md
+++ b/README.md
@@ -1286,7 +1286,7 @@ ICMP
 
 
 ```
-.[OpenToAll](https://opentoallctf.github.io/)
+.[OpenToAll]:(https://opentoallctf.github.io/)
 ```