diff --git a/scour/scour.py b/scour/scour.py
index 1e990c4..ac91561 100644
--- a/scour/scour.py
+++ b/scour/scour.py
@@ -1386,7 +1386,6 @@ def removeDuplicateGradients(doc):
     num = 0
 
     gradientsToRemove = {}
-    duplicateToMaster = {}
 
     for gradType in ['linearGradient', 'radialGradient']:
         grads = doc.getElementsByTagName(gradType)
@@ -1405,8 +1404,6 @@ def removeDuplicateGradients(doc):
             duplicates = bucket[1:]
 
             gradientsToRemove[master] = duplicates
-            for ograd in duplicates:
-                duplicateToMaster[ograd] = master
 
     # get a collection of all elements that are referenced and their referencing elements
     referencedIDs = findReferencedElements(doc.documentElement)