diff --git a/solr/CHANGES.txt b/solr/CHANGES.txt
index aaad547f0f5..8ce41ef6985 100644
--- a/solr/CHANGES.txt
+++ b/solr/CHANGES.txt
@@ -260,6 +260,8 @@ Other Changes
 
 * SOLR-11613: Make message for missing dataimport config in UI more explicit. (Shawn Heisey, Amrit Sarkar via Cassandra Targett)
 
+* SOLR-11933: Make DIH UI page safer by not default checking the clean checkbox (Eric Pugh via Tomás Fernández Löbbe)
+
 ==================  7.2.1 ==================
 
 Consult the LUCENE_CHANGES.txt file for additional, low level, changes in this release.
diff --git a/solr/webapp/web/js/angular/controllers/dataimport.js b/solr/webapp/web/js/angular/controllers/dataimport.js
index cebf27ab878..c31b6f0fbe7 100644
--- a/solr/webapp/web/js/angular/controllers/dataimport.js
+++ b/solr/webapp/web/js/angular/controllers/dataimport.js
@@ -96,7 +96,7 @@ solrAdminApp.controller('DataImportController',
         $scope.form = {
             command: "full-import",
             verbose: false,
-            clean: true,
+            clean: false,
             commit: true,
             showDebug: false,
             custom: "",