diff --git a/freeglut/freeglut/src/freeglut_structure.c b/freeglut/freeglut/src/freeglut_structure.c
index 583f744..6aa02fd 100644
--- a/freeglut/freeglut/src/freeglut_structure.c
+++ b/freeglut/freeglut/src/freeglut_structure.c
@@ -91,6 +91,7 @@ SFG_Window* fgCreateWindow( SFG_Window* parent, const char* title,
      * Initialize the object properties
      */
     window->ID = ++fgStructure.WindowID;
+    window->State.OldHeight = window->State.OldWidth = -1;
 
     fgListInit( &window->Children );
     if( parent )
diff --git a/freeglut/freeglut/src/freeglut_window.c b/freeglut/freeglut/src/freeglut_window.c
index 743b94f..07422f7 100644
--- a/freeglut/freeglut/src/freeglut_window.c
+++ b/freeglut/freeglut/src/freeglut_window.c
@@ -610,7 +610,6 @@ int FGAPIENTRY glutCreateSubWindow( int parentID, int x, int y, int w, int h )
     parent = fgWindowByID( parentID );
     freeglut_return_val_if_fail( parent != NULL, 0 );
     window = fgCreateWindow( parent, "", x, y, w, h, GL_FALSE, GL_FALSE );
-    window->State.OldHeight = window->State.OldWidth = -1;
     return window->ID;
 }