diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/types/StructType.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/types/StructType.scala
index 9778df271ddd..ae762005dc93 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/types/StructType.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/types/StructType.scala
@@ -40,6 +40,7 @@ import org.apache.spark.sql.catalyst.util.DataTypeParser
  * Example:
  * {{{
  * import org.apache.spark.sql._
+ * import org.apache.spark.sql.types._
  *
  * val struct =
  *   StructType(