diff --git a/src/wxmac/src/mac/wx_dccan1.cc b/src/wxmac/src/mac/wx_dccan1.cc
index ada1b4ab52..519b94711a 100644
--- a/src/wxmac/src/mac/wx_dccan1.cc
+++ b/src/wxmac/src/mac/wx_dccan1.cc
@@ -930,6 +930,9 @@ Bool wxCanvasDC::GlyphAvailable(int c, wxFont *f)
 
 void wxCanvasDC::SetAntiAlias(Bool v)
 {
+  if (anti_alias != v) {
+    cMacDC->EndCG();
+  }
   wxbCanvasDC::SetAntiAlias(v);
 }