diff --git a/include/wx/gtk/region.h b/include/wx/gtk/region.h
index 9fbbba8ea2..a00a0af674 100644
--- a/include/wx/gtk/region.h
+++ b/include/wx/gtk/region.h
@@ -122,13 +122,11 @@ private:
     void Init();
     void CreateRects( const wxRegion& r );
 
-    size_t   m_current;
     wxRegion m_region;
-
     wxRect *m_rects;
-    size_t  m_numRects;
+    int m_numRects;
+    int m_current;
 
-private:
     DECLARE_DYNAMIC_CLASS(wxRegionIterator)
 };
 
diff --git a/src/gtk/region.cpp b/src/gtk/region.cpp
index cf1d5d363b..1f22346b7b 100644
--- a/src/gtk/region.cpp
+++ b/src/gtk/region.cpp
@@ -370,15 +370,13 @@ void wxRegionIterator::CreateRects( const wxRegion& region )
     if (!gdkregion)
         return;
 
-    GdkRectangle *gdkrects = NULL;
-    gint numRects = 0;
-    gdk_region_get_rectangles( gdkregion, &gdkrects, &numRects );
+    GdkRectangle* gdkrects;
+    gdk_region_get_rectangles(gdkregion, &gdkrects, &m_numRects);
 
-    m_numRects = numRects;
-    if (numRects)
+    if (m_numRects)
     {
         m_rects = new wxRect[m_numRects];
-        for (size_t i=0; i < m_numRects; ++i)
+        for (int i = 0; i < m_numRects; ++i)
         {
             GdkRectangle &gr = gdkrects[i];
             wxRect &wr = m_rects[i];
@@ -467,7 +465,7 @@ wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& ri)
     if ( m_numRects )
     {
         m_rects = new wxRect[m_numRects];
-        for ( unsigned int n = 0; n < m_numRects; n++ )
+        for ( int n = 0; n < m_numRects; n++ )
             m_rects[n] = ri.m_rects[n];
     }
     else