diff --git a/common/src/config/game-support/maimai-dx.ts b/common/src/config/game-support/maimai-dx.ts
index e7321c5af..8a064da47 100644
--- a/common/src/config/game-support/maimai-dx.ts
+++ b/common/src/config/game-support/maimai-dx.ts
@@ -63,7 +63,6 @@ const MaimaiDXMatchingClasses = [
 	ClassValue("B2", "B2"),
 	ClassValue("B1", "B1"),
 
-	ClassValue("A5", "A5"),
 	ClassValue("A5", "A5"),
 	ClassValue("A4", "A4"),
 	ClassValue("A3", "A3"),