diff --git a/glfw/cocoa_window.m b/glfw/cocoa_window.m
index d98487d68..e19b07712 100644
--- a/glfw/cocoa_window.m
+++ b/glfw/cocoa_window.m
@@ -1389,7 +1389,7 @@ static bool createNativeWindow(_GLFWwindow* window,
         [window->ns.object setLevel:NSMainMenuWindowLevel + 1];
     else
     {
-        [window->ns.object center];
+        [(NSWindow*)window->ns.object center];
         _glfw.ns.cascadePoint =
             NSPointToCGPoint([window->ns.object cascadeTopLeftFromPoint:
                               NSPointFromCGPoint(_glfw.ns.cascadePoint)]);