diff --git a/pyFTS/common/transformations/smoothing.py b/pyFTS/common/transformations/smoothing.py
index 73988ef..1f6a052 100644
--- a/pyFTS/common/transformations/smoothing.py
+++ b/pyFTS/common/transformations/smoothing.py
@@ -11,7 +11,7 @@ class MovingAverage(Transformation):
     def apply(self, data, param=None, **kwargs):
         steps = param if param is not None else self.steps
         ma = [k for k in data[:steps]]
-        ma.extend([np.mean(data[k-steps:k]) for k in range(q, len(data))])
+        ma.extend([np.mean(data[k-steps:k]) for k in range(steps, len(data))])
         return ma
 
     def inverse(self, data, param=None, **kwargs):
@@ -38,4 +38,4 @@ class ExponentialSmoothing(Transformation):
         return mm
 
     def inverse(self, data, param=None, **kwargs):
-        return data
\ No newline at end of file
+        return data