diff --git a/src/sgfParser/node.py b/src/sgfParser/node.py
--- a/src/sgfParser/node.py
+++ b/src/sgfParser/node.py
@@ -1,5 +1,5 @@
 from . import skipWhitespace, ParserError
-from .property import Property
+from .property import Property, GAME_INFO
 
 
 class Node:
@@ -27,7 +27,7 @@ class Node:
 		return (i,res)
 
 	def isGINode(self):
-		return any(prop.type==Property.GAME_INFO for prop in self.properties.values())
+		return any(prop.type==GAME_INFO for prop in self.properties.values())
 
 	def setProperty(self,name,value):
 		self.properties[name]=value