diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
index a352d62ae..288cb2a79 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
@@ -267,5 +267,7 @@ public final class Controllers {
         decorator = null;
         stage = null;
         scene = null;
+        stageHeight = null;
+        stageWidth = null;
     }
 }