diff --git a/glfw/cocoa_window.m b/glfw/cocoa_window.m
index e0b6ae97d..aec1147db 100644
--- a/glfw/cocoa_window.m
+++ b/glfw/cocoa_window.m
@@ -1314,6 +1314,7 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
     if (fbconfig->transparent)
     {
         [window->ns.object setOpaque:NO];
+        [window->ns.object setHasShadow:NO];
         [window->ns.object setBackgroundColor:[NSColor clearColor]];
     }