diff --git a/src/wxmac/src/mac/wx_dcmem.cc b/src/wxmac/src/mac/wx_dcmem.cc
index 30cb646da0..7e299ea4bc 100644
--- a/src/wxmac/src/mac/wx_dcmem.cc
+++ b/src/wxmac/src/mac/wx_dcmem.cc
@@ -74,6 +74,7 @@ void wxMemoryDC::SelectObject(wxBitmap *bitmap)
   }
 
   if (cMacDC) {
+    cMacDC->EndCG();
     DELETE_OBJ cMacDC;
     cMacDC = NULL;
   }