diff --git a/UI/AppKit/Interface/TabController.mm b/UI/AppKit/Interface/TabController.mm
index 4c07ade18be..bf1bb4f7c83 100644
--- a/UI/AppKit/Interface/TabController.mm
+++ b/UI/AppKit/Interface/TabController.mm
@@ -103,6 +103,7 @@ static NSString* const TOOLBAR_TAB_OVERVIEW_IDENTIFIER = @"ToolbarTabOverviewIde
         self.toolbar = [[NSToolbar alloc] initWithIdentifier:TOOLBAR_IDENTIFIER];
         [self.toolbar setDelegate:self];
         [self.toolbar setDisplayMode:NSToolbarDisplayModeIconOnly];
+        [self.toolbar setAllowsDisplayModeCustomization:NO];
         [self.toolbar setAllowsUserCustomization:NO];
         [self.toolbar setSizeMode:NSToolbarSizeModeRegular];