diff --git a/cui/source/dialogs/iconcdlg.cxx b/cui/source/dialogs/iconcdlg.cxx
index c4c32b57f182..520d94b26cc6 100644
--- a/cui/source/dialogs/iconcdlg.cxx
+++ b/cui/source/dialogs/iconcdlg.cxx
@@ -1106,7 +1106,7 @@ void IconChoiceDialog::Start_Impl()
     if ( aTabDlgOpt.Exists() )
     {
         // ggf. Position aus Konfig
-        SetWindowState( ByteString( aTabDlgOpt.GetWindowState().getStr(), RTL_TEXTENCODING_ASCII_US ) );
+        SetWindowState(rtl::OUStringToOString(aTabDlgOpt.GetWindowState().getStr(), RTL_TEXTENCODING_ASCII_US));
 
         // initiale TabPage aus Programm/Hilfe/Konfig
         nActPage = (sal_uInt16)aTabDlgOpt.GetPageID();
diff --git a/cui/source/dialogs/srchxtra.cxx b/cui/source/dialogs/srchxtra.cxx
index 4f8b83bc67f9..2875e4be3873 100644
--- a/cui/source/dialogs/srchxtra.cxx
+++ b/cui/source/dialogs/srchxtra.cxx
@@ -45,6 +45,7 @@
 #include "backgrnd.hxx"
 #include <svx/dialogs.hrc> // RID_SVXPAGE_...
 #include <tools/resary.hxx>
+#include <rtl/strbuf.hxx>
 
 // class SvxSearchFormatDialog -------------------------------------------
 
@@ -186,9 +187,10 @@ SvxSearchAttributeDialog::SvxSearchAttributeDialog( Window* pParent,
                 pEntry = aAttrLB.SvTreeListBox::InsertEntry( aAttrNames.GetString(nId) );
             else
             {
-                ByteString sError( "no resource for slot id\nslot = " );
-                sError += ByteString::CreateFromInt32( nSlot );
-                DBG_ERRORFILE( sError.GetBuffer() );
+                rtl::OStringBuffer sError(
+                    RTL_CONSTASCII_STRINGPARAM("no resource for slot id\nslot = "));
+                sError.append(nSlot);
+                DBG_ERRORFILE(sError.getStr());
             }
 
             if ( pEntry )