diff --git a/OSBindings/Mac/Clock Signal/Views/CSCathodeRayView.m b/OSBindings/Mac/Clock Signal/Views/CSCathodeRayView.m
index 7c223f4de..2346026d9 100644
--- a/OSBindings/Mac/Clock Signal/Views/CSCathodeRayView.m	
+++ b/OSBindings/Mac/Clock Signal/Views/CSCathodeRayView.m	
@@ -161,6 +161,7 @@ static CVReturn DisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTimeSt
 	{
 		NSOpenGLPFADoubleBuffer,
 		NSOpenGLPFAOpenGLProfile,	NSOpenGLProfileVersion3_2Core,
+		NSOpenGLPFAMultisample,
 		NSOpenGLPFASampleBuffers,	1,
 		NSOpenGLPFASamples,			2,
 		0