diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index 93a31897c9fc194894bacbe64d926fdeb1207c20..e52baf51aed1af3a52b8c4bc54f384bf8d486fb8 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -655,6 +655,7 @@ object Unidoc {
       .map(_.filterNot(_.getCanonicalPath.contains("org/apache/spark/util/collection")))
       .map(_.filterNot(_.getCanonicalPath.contains("org/apache/spark/sql/catalyst")))
       .map(_.filterNot(_.getCanonicalPath.contains("org/apache/spark/sql/execution")))
+      .map(_.filterNot(_.getCanonicalPath.contains("org/apache/spark/sql/internal")))
       .map(_.filterNot(_.getCanonicalPath.contains("org/apache/spark/sql/hive/test")))
   }