diff --git a/tabby-core/src/configDefaults.macos.yaml b/tabby-core/src/configDefaults.macos.yaml
index 791fefa4..942da497 100644
--- a/tabby-core/src/configDefaults.macos.yaml
+++ b/tabby-core/src/configDefaults.macos.yaml
@@ -75,3 +75,5 @@ hotkeys:
     - '⌘-E'
   switch-profile:
     - '⌘-Shift-E'
+appearance:
+  vibrancy: true