diff --git a/include/wx/string.h b/include/wx/string.h
index aa01f5fee3..bc55fadaa4 100644
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -291,8 +291,6 @@ protected:
   // memory allocation
     // allocates memory for string of length nLen
   bool AllocBuffer(size_t nLen);
-    // copies data to another string
-  bool AllocCopy(wxString&, int, int) const;
     // effectively copies data to string
   bool AssignCopy(size_t, const wxChar *);
 
diff --git a/src/common/string.cpp b/src/common/string.cpp
index f26486112a..8d39d9ceea 100644
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -891,26 +891,6 @@ bool wxStringBase::ConcatSelf(size_t nSrcLen, const wxChar *pszSrcData,
   return true;
 }
 
-// ---------------------------------------------------------------------------
-// simple sub-string extraction
-// ---------------------------------------------------------------------------
-
-// helper function: clone the data attached to this string
-bool wxStringBase::AllocCopy(wxString& dest, int nCopyLen, int nCopyIndex) const
-{
-  if ( nCopyLen == 0 ) {
-    dest.Init();
-  }
-  else {
-    if ( !dest.AllocBuffer(nCopyLen) ) {
-      // allocation failure handled by caller
-      return false;
-    }
-    memcpy(dest.m_pchData, m_pchData + nCopyIndex, nCopyLen*sizeof(wxChar));
-  }
-  return true;
-}
-
 #endif // !wxUSE_STL_BASED_WXSTRING
 
 #if !wxUSE_STL_BASED_WXSTRING || !defined(HAVE_STD_STRING_COMPARE)