diff --git a/src/pulp/pulp.py b/src/pulp/pulp.py
index 9ba9afb..972738e 100755
--- a/src/pulp/pulp.py
+++ b/src/pulp/pulp.py
@@ -1915,7 +1915,7 @@ class LpVariableDict(dict):
         if key in self:
             return dict.__getitem__(self, key)
         else:
-            self[key] = LpVariable(name % key, lowBound, upBound, cat)
+            self[key] = LpVariable(self.name % key, lowBound, upBound, cat)
             return self[key]
 
 # Utility functions