diff --git a/src/operator/tensor/init_op.h b/src/operator/tensor/init_op.h
index 2cdf046b36b1..93fcd4ee6091 100644
--- a/src/operator/tensor/init_op.h
+++ b/src/operator/tensor/init_op.h
@@ -134,7 +134,7 @@ struct RangeParam : public dmlc::Parameter<RangeParam> {
               " except in some cases where step is not an integer and"
               " floating point round-off affects the length of out. If the"
               " stop is equal to the start, the stop will be computed from"
-              " the output size");
+              " the output shape.");
     DMLC_DECLARE_FIELD(step)
     .set_default(1)
     .describe("Spacing between values.");