diff --git a/src/osx/cocoa/textctrl.mm b/src/osx/cocoa/textctrl.mm
index 132dab3ea6..a86a4d2f63 100644
--- a/src/osx/cocoa/textctrl.mm
+++ b/src/osx/cocoa/textctrl.mm
@@ -620,7 +620,8 @@ wxNSTextViewControl::wxNSTextViewControl( wxTextCtrl *wxPeer, WXWidget w, long s
     [tv setVerticallyResizable:YES];
     [tv setHorizontallyResizable:hasHScroll];
     [tv setAutoresizingMask:NSViewWidthSizable];
-
+    [tv setAutomaticDashSubstitutionEnabled:false];
+    
     if ( hasHScroll )
     {
         [[tv textContainer] setContainerSize:NSMakeSize(FLT_MAX, FLT_MAX)];