diff --git a/mindspore/nn/probability/bijector/scalar_affine.py b/mindspore/nn/probability/bijector/scalar_affine.py
index b75298be20..e765187427 100644
--- a/mindspore/nn/probability/bijector/scalar_affine.py
+++ b/mindspore/nn/probability/bijector/scalar_affine.py
@@ -69,6 +69,7 @@ class ScalarAffine(Bijector):
             param=param)
 
         self.abs = P.Abs()
+        self.oneslike = P.OnesLike()
         self.log = log_generic
 
     @property
@@ -92,7 +93,7 @@ class ScalarAffine(Bijector):
             f(x) = a * x + b
         """
         x = self._check_value(x, 'value')
-        return self.scale * x + self.shift
+        return self.scale * x + self.shift * self.oneslike(x)
 
     def _inverse(self, y):
         r"""