diff --git a/src/cocoa_window.m b/src/cocoa_window.m
index 443000eb..aa172c02 100644
--- a/src/cocoa_window.m
+++ b/src/cocoa_window.m
@@ -1030,14 +1030,14 @@ void _glfwSetWindowTitleCocoa(_GLFWwindow* window, const char* title)
 void _glfwSetWindowTitlebarColorCocoa(_GLFWwindow* window, int r, int g, int b, int a)
 {
     @autoreleasepool {
-        CGFloat red = r/ 255;   
-        CGFloat green =g / 255; 
-        CGFloat blue = b / 255; 
-        CGFloat alpha = a / 255; 
+        CGFloat red = (CGFloat)r/ 255.0;   
+        CGFloat green = (CGFloat)g / 255.0; 
+        CGFloat blue = (CGFloat)b / 255.0; 
+        CGFloat alpha = (CGFloat)a / 255.0; 
 
         NSColor *color = [NSColor colorWithCalibratedRed:red green:green blue:blue alpha:alpha];
 
-        // [window->ns.object setTitlebarAppearsTransparent:YES]; // gives it "flat" look
+        [window->ns.object setTitlebarAppearsTransparent:YES]; // gives it "flat" look
         [window->ns.object setBackgroundColor:color];
     } // autoreleasepool
 }