diff --git a/Lib/fontTools/varLib/models.py b/Lib/fontTools/varLib/models.py
index 4a7132596..f034b93e0 100644
--- a/Lib/fontTools/varLib/models.py
+++ b/Lib/fontTools/varLib/models.py
@@ -254,7 +254,6 @@ class VariationModel(object):
 		self.deltaWeights = deltaWeights
 
 	def getDeltas(self, masterValues):
-		count = len(self.locations)
 		assert len(masterValues) == len(self.deltaWeights)
 		mapping = self.reverseMapping
 		out = []