diff --git a/src/wxmac/src/mac/wx_app.cc b/src/wxmac/src/mac/wx_app.cc
index 42d45667b2..152d48970a 100644
--- a/src/wxmac/src/mac/wx_app.cc
+++ b/src/wxmac/src/mac/wx_app.cc
@@ -729,6 +729,7 @@ void wxApp::doMacKeyUpDown(Bool down)
     case 83:
     case 84:
     case 85:
+    case 86:
     case 87:
     case 88:
     case 89: