diff --git a/gerbview/class_gerber_draw_item.h b/gerbview/class_gerber_draw_item.h
index 1d30606ba4..1d67d6edeb 100644
--- a/gerbview/class_gerber_draw_item.h
+++ b/gerbview/class_gerber_draw_item.h
@@ -179,6 +179,17 @@ public:
 
 
     bool Save( FILE* aFile ) const;
+
+#if defined(DEBUG)
+    /**
+     * Function Show
+     * is used to output the object tree, currently for debugging only.
+     * @param nestLevel An aid to prettier tree indenting, and is the level
+     *          of nesting of this object within the overall tree.
+     * @param os The ostream& to output to.
+     */
+    virtual void Show( int nestLevel, std::ostream& os );
+#endif
 };
 
 #endif /* CLASS_GERBER_DRAW_ITEM_H */
diff --git a/gerbview/rs274d.cpp b/gerbview/rs274d.cpp
index b5f62fe824..ff73f3b6a6 100644
--- a/gerbview/rs274d.cpp
+++ b/gerbview/rs274d.cpp
@@ -1006,7 +1006,7 @@ bool GERBER::Execute_DCODE_Command( WinEDA_GerberFrame* frame,
                 {
                     if( m_LayerNegative ^ m_ImageNegative )
                         gbritem->m_Flags |= DRAW_ERASED;
-                    D( printf( "\nm_Flags=0x%08X\n", edge_poly->m_Flags ); )
+                    D( printf( "\nm_Flags=0x%08X\n", gbritem->m_Flags ); )
                 }
                 break;
             }