diff --git a/prototorch/components/initializers.py b/prototorch/components/initializers.py
index e1dc938..78e7b4e 100644
--- a/prototorch/components/initializers.py
+++ b/prototorch/components/initializers.py
@@ -132,7 +132,7 @@ class StratifiedMeanInitializer(ClassAwareInitializer):
         self.initializers = get_subinitializers(self.data, self.targets,
                                                 self.clabels, MeanInitializer)
 
-    def generate(self, length, dist=[]):
+    def generate(self, length, dist):
         samples = self._get_samples_from_initializer(length, dist)
         return samples