diff --git a/CHAP/common/processor.py b/CHAP/common/processor.py
index 92485e5..25d678e 100755
--- a/CHAP/common/processor.py
+++ b/CHAP/common/processor.py
@@ -695,7 +695,7 @@ def process(self, data):
         :rtype: numpy.ndarray
         """
 
-        return self.unwrap_pipelinedata(data).data[-1]
+        return self.unwrap_pipelinedata(data)[-1].data
 
 
 if __name__ == '__main__':