diff --git a/src/generic/calctrl.cpp b/src/generic/calctrl.cpp
index e6341247b3..8813954b64 100644
--- a/src/generic/calctrl.cpp
+++ b/src/generic/calctrl.cpp
@@ -824,7 +824,7 @@ void wxCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
 
         // Get extent of month-name + year
         wxCoord monthw, monthh;
-        wxString headertext = m_date.Format("%B %Y");
+        wxString headertext = m_date.Format(wxT("%B %Y"));
         dc.GetTextExtent(headertext, &monthw, &monthh);
 
         // draw month-name centered above weekdays
diff --git a/src/generic/dcpsg.cpp b/src/generic/dcpsg.cpp
index 03aa8f13d2..561102d3f5 100644
--- a/src/generic/dcpsg.cpp
+++ b/src/generic/dcpsg.cpp
@@ -1577,7 +1577,7 @@ bool wxPostScriptDC::StartDoc( const wxString& message )
         m_printData.SetFilename(filename);
     }
 
-    m_pstream = fopen( m_printData.GetFilename().fn_str(), "w+" );
+    m_pstream = wxFopen( m_printData.GetFilename().fn_str(), wxT("w+") );
 
     if (!m_pstream)
     {