diff --git a/src/gtk/button.cpp b/src/gtk/button.cpp
index 71cfd13497..61e1ad1396 100644
--- a/src/gtk/button.cpp
+++ b/src/gtk/button.cpp
@@ -74,8 +74,8 @@ gtk_button_style_set_callback( GtkWidget *m_widget, GtkStyle *WXUNUSED(style), w
             gtk_border_free( default_border );
         }
         win->MoveWindow(
-            win->m_x - top_border,
-            win->m_y - left_border,
+            win->m_x - left_border,
+            win->m_y - top_border,
             win->m_width + left_border + right_border,
             win->m_height + top_border + bottom_border);
     }
diff --git a/src/gtk/window.cpp b/src/gtk/window.cpp
index 5ccb022670..d953a3e68b 100644
--- a/src/gtk/window.cpp
+++ b/src/gtk/window.cpp
@@ -2742,8 +2742,8 @@ void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags
             }
         }
 
-        DoMoveWindow( m_x-top_border,
-                      m_y-left_border,
+        DoMoveWindow( m_x - left_border,
+                      m_y - top_border,
                       m_width+left_border+right_border,
                       m_height+top_border+bottom_border );
     }