1 files changed, 1 insertions, 1 deletions
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
index e4f23fe17b..35cdab50bd 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
@@ -459,7 +459,7 @@ class DataFrameSuite extends QueryTest with SharedSQLContext {
     val emptyDescribeResult = Seq(
       Row("count", "0", "0"),
       Row("mean", null, null),
-      Row("stddev", null, null),
+      Row("stddev", "NaN", "NaN"),
       Row("min", null, null),
       Row("max", null, null))