diff --git a/glfw/cocoa_window.m b/glfw/cocoa_window.m
index 20ac6f896..cc56987da 100644
--- a/glfw/cocoa_window.m
+++ b/glfw/cocoa_window.m
@@ -3918,6 +3918,18 @@ apply_titlebar_color_settings(_GLFWwindow *window) {
 #undef tc
 }
 
+static void
+apply_window_corner_curve(_GLFWwindow *window) {
+    if (!window || !window->decorated) return;
+    if (@available(macOS 26.0, *)) {
+        GLFWWindow *nsw = window->ns.object;
+        NSView *frame_view = nsw.contentView.superview;
+        CALayer *layer = frame_view.layer;
+        if (!layer) return;
+        layer.cornerCurve = kCACornerCurveContinuous;
+    }
+}
+
 
 
 GLFWAPI void glfwCocoaSetWindowChrome(GLFWwindow *w, unsigned int color, bool use_system_color, unsigned int system_color, int background_blur, unsigned int hide_window_decorations, bool show_text_in_titlebar, int color_space, float background_opacity, bool resizable) { @autoreleasepool {
@@ -4033,6 +4045,7 @@ GLFWAPI void glfwCocoaSetWindowChrome(GLFWwindow *w, unsigned int color, bool us
     }
 #undef tc
     apply_titlebar_color_settings(window);
+    apply_window_corner_curve(window);
 
     // HACK: Changing the style mask can cause the first responder to be cleared
     [nsw makeFirstResponder:window->ns.view];
diff --git a/glfw/glfw.py b/glfw/glfw.py
index af723451f..79894ef51 100755
--- a/glfw/glfw.py
+++ b/glfw/glfw.py
@@ -175,7 +175,7 @@ def init_env(
 
     elif module == 'cocoa':
         ans.cppflags.append('-DGL_SILENCE_DEPRECATION')
-        for f_ in 'Cocoa IOKit CoreFoundation CoreVideo UniformTypeIdentifiers'.split():
+        for f_ in 'Cocoa IOKit CoreFoundation CoreVideo QuartzCore UniformTypeIdentifiers'.split():
             ans.ldpaths.extend(('-framework', f_))
 
     elif module == 'wayland':