diff --git a/src/chapter_3/milestone_project_tic-tac-toe.md b/src/chapter_3/milestone_project_tic-tac-toe.md
index c8a4be5..79b1502 100644
--- a/src/chapter_3/milestone_project_tic-tac-toe.md
+++ b/src/chapter_3/milestone_project_tic-tac-toe.md
@@ -229,7 +229,7 @@ impl Game {
 
         self.update_state();
 
-        if let GameState::Active = self.state {
+        if GameState::Active == self.state {
             self.turn += 1;
         }