diff --git a/exercises/25/pacman_ai/README.md b/exercises/25/pacman_ai/README.md
index 4cb2b7c..537e724 100644
--- a/exercises/25/pacman_ai/README.md
+++ b/exercises/25/pacman_ai/README.md
@@ -66,7 +66,8 @@ bool PacManAI::isValidMove(const Move & move) {
 
 <details>
    <summary>Hint</summary>
-
+Use isWalkableForPacMan to make sure PacMan is not walking in ways that are not legal
+  
 </details>
 
 ### Part 3