diff --git a/include/wx/os2/region.h b/include/wx/os2/region.h
index a2a669b0de..f4e2235cc0 100644
--- a/include/wx/os2/region.h
+++ b/include/wx/os2/region.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        region.h
+// Name:        wx/os2/region.h
 // Purpose:     wxRegion class
 // Author:      David Webster
 // Modified by:
@@ -28,6 +28,7 @@ public:
             );
     wxRegion(const wxRect& rRect);
     wxRegion(WXHRGN hRegion, WXHDC hPS); // Hangs on to this region
+    wxRegion(size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE );
     wxRegion( const wxBitmap& bmp)
     {
         Union(bmp);
diff --git a/src/os2/region.cpp b/src/os2/region.cpp
index f2fe44a607..92849e1384 100644
--- a/src/os2/region.cpp
+++ b/src/os2/region.cpp
@@ -151,10 +151,8 @@ wxRegion::wxRegion(
                                      );
 } // end of wxRegion::wxRegion
 
-wxRegion::wxRegion(
-  const wxPoint&                    rTopLeft
-, const wxPoint&                    rBottomRight
-)
+wxRegion::wxRegion(const wxPoint& rTopLeft,
+                   const wxPoint& rBottomRight)
 {
     RECTL                           vRect;
     SIZEL                           vSize = {0, 0};
@@ -188,9 +186,7 @@ wxRegion::wxRegion(
                                      );
 } // end of wxRegion::wxRegion
 
-wxRegion::wxRegion(
-  const wxRect&                     rRect
-)
+wxRegion::wxRegion(const wxRect& rRect)
 {
     RECTL                           vRect;
     SIZEL                           vSize = {0, 0};
@@ -225,6 +221,11 @@ wxRegion::wxRegion(
                                      );
 } // end of wxRegion::wxRegion
 
+wxRegion::wxRegion(size_t n, const wxPoint *points, int WXUNUSED(fillStyle))
+{
+    // TO DO
+}
+
 //
 // Destroy the region.
 //