diff --git a/BlenderCOL.py b/BlenderCOL.py
index 1f89944..eac9642 100644
--- a/BlenderCOL.py
+++ b/BlenderCOL.py
@@ -67,7 +67,7 @@ class Triangle:
         self.ColType = 0
         self.TerrainType = 0
         self.unknown = 0
-        self.ColParameter = None
+        self.ColParameter = 0
 
     @property
     def has_ColParameter(self):
@@ -125,6 +125,7 @@ def pack(stream,vertices,triangles): #pack triangles into col file
         else:
             group.ColParameter_offset = stream.tell()
             for triangle in group.triangles:
+                print(triangle.ColParameter)
                 uint16.pack(stream,triangle.ColParameter)
 
     stream.seek(header.group_offset)