diff --git a/parser/nodes.cc b/parser/nodes.cc
index a734d86..f98008a 100644
--- a/parser/nodes.cc
+++ b/parser/nodes.cc
@@ -15,3 +15,7 @@ void Node::addChildren(refptr<Node> other)
         addChild(*it);
     }
 }
+
+Node::~Node()
+{
+}
diff --git a/parser/nodes.h b/parser/nodes.h
index dfe644e..f23e516 100644
--- a/parser/nodes.h
+++ b/parser/nodes.h
@@ -11,6 +11,7 @@
 class Node
 {
     public:
+        virtual ~Node();
         void addChild(refptr<Node> child) { m_children.push_back(child); }
         void addChildren(refptr<Node> other);
 
diff --git a/parser/parser.yy b/parser/parser.yy
index 92168df..5c82b0d 100644
--- a/parser/parser.yy
+++ b/parser/parser.yy
@@ -229,11 +229,11 @@ plane: PLANE LCURLY plane_items RCURLY {
         }
      ;
 
-plane_items: plane_item plane_items {
-            }
+plane_items: plane_item plane_items
+           | shape_item plane_items
            ;
 
-plane_item: POSITION vector, number
+plane_item: POSITION vector COMMA number
           | shape_item
           ;