diff --git a/paddle/fluid/operators/dropout_op.cc b/paddle/fluid/operators/dropout_op.cc
index dd3474dd2529b5e2cb2cd32aec41fb6357b5d537..2ccc86c1dc04a3afeb02b24677e6ebce40cca4fa 100644
--- a/paddle/fluid/operators/dropout_op.cc
+++ b/paddle/fluid/operators/dropout_op.cc
@@ -120,6 +120,7 @@ class DropoutOpGrad : public framework::OperatorWithKernel {
                       "Dimensions of Input(X) and Mask must be the same.");
 
     ctx->SetOutputDim(framework::GradVarName("X"), x_dims);
+    ctx->ShareLoD("X", /*->*/ framework::GradVarName("X"));
   }
 };