diff --git a/src/cocoa/cocoamain.mm b/src/cocoa/cocoamain.mm
index 97b699c..9ad2ff6 100644
--- a/src/cocoa/cocoamain.mm
+++ b/src/cocoa/cocoamain.mm
@@ -1033,6 +1033,7 @@ void InitTextWindow() {
     [TW setContentView:scrollView];
     [scrollView setBackgroundColor:[NSColor blackColor]];
     [scrollView setHasVerticalScroller:YES];
+    [scrollView setScrollerKnobStyle:NSScrollerKnobStyleLight];
     [[scrollView contentView] setCopiesOnScroll:YES];
 
     TWView = [[TextWindowView alloc] init];