diff --git a/src/nsgl_context.m b/src/nsgl_context.m
index 09b0de0f..271b8ae7 100644
--- a/src/nsgl_context.m
+++ b/src/nsgl_context.m
@@ -137,6 +137,7 @@ int _glfwCreateContext(_GLFWwindow* window,
     NSOpenGLPixelFormatAttribute attributes[40];
 
     ADD_ATTR(NSOpenGLPFADoubleBuffer);
+    ADD_ATTR(NSOpenGLPFAClosestPolicy);
 
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
     if (wndconfig->glMajor > 2)