diff --git a/src/osx/webview_webkit.mm b/src/osx/webview_webkit.mm
index 5419036450..4bfb7ece07 100644
--- a/src/osx/webview_webkit.mm
+++ b/src/osx/webview_webkit.mm
@@ -28,6 +28,7 @@
 #include "wx/cocoa/autorelease.h"
 #else
 #include "wx/osx/private.h"
+#include "wx/cocoa/string.h"
 
 #include <WebKit/WebKit.h>
 #include <WebKit/HIWebView.h>
@@ -302,28 +303,6 @@ DEFINE_ONE_SHOT_HANDLER_GETTER( wxWebViewWebKitEventHandler )
 
 #endif
 
-//---------------------------------------------------------
-// helper functions for NSString<->wxString conversion
-//---------------------------------------------------------
-
-inline wxString wxStringWithNSString(NSString *nsstring)
-{
-#if wxUSE_UNICODE
-    return wxString([nsstring UTF8String], wxConvUTF8);
-#else
-    return wxString([nsstring lossyCString]);
-#endif // wxUSE_UNICODE
-}
-
-inline NSString* wxNSStringWithWxString(const wxString &wxstring)
-{
-#if wxUSE_UNICODE
-    return [NSString stringWithUTF8String: wxstring.mb_str(wxConvUTF8)];
-#else
-    return [NSString stringWithCString: wxstring.c_str() length:wxstring.Len()];
-#endif // wxUSE_UNICODE
-}
-
 @interface MyFrameLoadMonitor : NSObject
 {
     wxWebViewWebKit* webKitWindow;