diff --git a/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala b/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala
index 60142291eaf30023976cb7fb8eb9f1bf7833e44e..f33e19a0cb7dd5a9d65e2587ef365bccad054582 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala
@@ -1415,7 +1415,7 @@ class DataFrame private[sql](
    * @group dfops
    * @since 1.3.0
    */
-  override def distinct: DataFrame = dropDuplicates()
+  override def distinct(): DataFrame = dropDuplicates()
 
   /**
    * @group basic