diff --git a/src/osx/carbon/font.cpp b/src/osx/carbon/font.cpp
index ed790206c1..fd26c73c80 100644
--- a/src/osx/carbon/font.cpp
+++ b/src/osx/carbon/font.cpp
@@ -1309,4 +1309,23 @@ void wxNativeFontInfo::SetStrikethrough(bool WXUNUSED(strikethrough))
 {
 }
 
+void wxNativeFontInfo::UpdateNamesMap(const wxString& familyName, CTFontDescriptorRef descr)
+{
+    if ( gs_FontFamilyToPSName.find(familyName) == gs_FontFamilyToPSName.end() )
+    {
+        wxCFStringRef psName( (CFStringRef) CTFontDescriptorCopyAttribute(descr, kCTFontNameAttribute));
+        gs_FontFamilyToPSName[familyName] = psName.AsString();
+    }
+}
+
+void wxNativeFontInfo::UpdateNamesMap(const wxString& familyName, CTFontRef font)
+{
+    if ( gs_FontFamilyToPSName.find(familyName) == gs_FontFamilyToPSName.end() )
+    {
+        wxCFRef<CTFontDescriptorRef> descr(CTFontCopyFontDescriptor( font ));
+        UpdateNamesMap(familyName, descr);
+    }
+}
+
+