diff --git a/macos/src/main/java/com/github/weisj/darklaf/platform/macos/ui/MacOSTitlePane.java b/macos/src/main/java/com/github/weisj/darklaf/platform/macos/ui/MacOSTitlePane.java
index a5b9cb6f..50ac36d6 100644
--- a/macos/src/main/java/com/github/weisj/darklaf/platform/macos/ui/MacOSTitlePane.java
+++ b/macos/src/main/java/com/github/weisj/darklaf/platform/macos/ui/MacOSTitlePane.java
@@ -262,7 +262,7 @@ public class MacOSTitlePane extends CustomTitlePane {
     }
 
     private void updateOpacity() {
-        setOpaque(PropertyUtil.getBooleanProperty(rootPane, MacOSDecorationsUtil.TRANSPARENT_TITLE_BAR_KEY));
+        setOpaque(!PropertyUtil.getBooleanProperty(rootPane, MacOSDecorationsUtil.TRANSPARENT_TITLE_BAR_KEY));
     }
 
     private boolean useCustomTitle() {