diff --git a/solr/example/example-DIH/solr/db/conf/db-data-config.xml b/solr/example/example-DIH/solr/db/conf/db-data-config.xml
index 3638748ba1d..9fb10eab38b 100644
--- a/solr/example/example-DIH/solr/db/conf/db-data-config.xml
+++ b/solr/example/example-DIH/solr/db/conf/db-data-config.xml
@@ -1,7 +1,7 @@
 <dataConfig>
     <dataSource driver="org.hsqldb.jdbcDriver" url="jdbc:hsqldb:./example-DIH/hsqldb/ex" user="sa" />
     <document>
-            <entity name="item" query="select * from item"
+        <entity name="item" query="select * from item"
                 deltaQuery="select id from item where last_modified > '${dataimporter.last_index_time}'">
             <field column="NAME" name="name" />
             <field column="NAME" name="nameSort" />
diff --git a/solr/example/example-DIH/solr/rss/conf/rss-data-config.xml b/solr/example/example-DIH/solr/rss/conf/rss-data-config.xml
index c28e0bd5908..fd0e2c84269 100644
--- a/solr/example/example-DIH/solr/rss/conf/rss-data-config.xml
+++ b/solr/example/example-DIH/solr/rss/conf/rss-data-config.xml
@@ -1,26 +1,26 @@
 <dataConfig>
-	<dataSource type="HttpDataSource" />
-	<document>
-		<entity name="slashdot"
-				pk="link"
-				url="http://rss.slashdot.org/Slashdot/slashdot"
-				processor="XPathEntityProcessor"
-				forEach="/RDF/channel | /RDF/item"
-				transformer="DateFormatTransformer">
+    <dataSource type="HttpDataSource" />
+    <document>
+        <entity name="slashdot"
+                pk="link"
+                url="http://rss.slashdot.org/Slashdot/slashdot"
+                processor="XPathEntityProcessor"
+                forEach="/RDF/channel | /RDF/item"
+                transformer="DateFormatTransformer">
 				
-			<field column="source" xpath="/RDF/channel/title" commonField="true" />
-			<field column="source-link" xpath="/RDF/channel/link" commonField="true" />
-			<field column="subject" xpath="/RDF/channel/subject" commonField="true" />
+            <field column="source" xpath="/RDF/channel/title" commonField="true" />
+            <field column="source-link" xpath="/RDF/channel/link" commonField="true" />
+            <field column="subject" xpath="/RDF/channel/subject" commonField="true" />
 			
-			<field column="title" xpath="/RDF/item/title" />
-			<field column="link" xpath="/RDF/item/link" />
-			<field column="description" xpath="/RDF/item/description" />
-			<field column="creator" xpath="/RDF/item/creator" />
-			<field column="item-subject" xpath="/RDF/item/subject" />
-			<field column="date" xpath="/RDF/item/date" dateTimeFormat="yyyy-MM-dd'T'hh:mm:ss" />
-			<field column="slash-department" xpath="/RDF/item/department" />
-			<field column="slash-section" xpath="/RDF/item/section" />
-			<field column="slash-comments" xpath="/RDF/item/comments" />
-		</entity>
-	</document>
+            <field column="title" xpath="/RDF/item/title" />
+            <field column="link" xpath="/RDF/item/link" />
+            <field column="description" xpath="/RDF/item/description" />
+            <field column="creator" xpath="/RDF/item/creator" />
+            <field column="item-subject" xpath="/RDF/item/subject" />
+            <field column="date" xpath="/RDF/item/date" dateTimeFormat="yyyy-MM-dd'T'hh:mm:ss" />
+            <field column="slash-department" xpath="/RDF/item/department" />
+            <field column="slash-section" xpath="/RDF/item/section" />
+            <field column="slash-comments" xpath="/RDF/item/comments" />
+        </entity>
+    </document>
 </dataConfig>
diff --git a/solr/example/example-DIH/solr/tika/conf/tika-data-config.xml b/solr/example/example-DIH/solr/tika/conf/tika-data-config.xml
index d2a0ec9ef9c..e2f4c37eb9e 100644
--- a/solr/example/example-DIH/solr/tika/conf/tika-data-config.xml
+++ b/solr/example/example-DIH/solr/tika/conf/tika-data-config.xml
@@ -1,10 +1,10 @@
 <dataConfig>
-        <dataSource type="BinFileDataSource" />
-        <document>
+    <dataSource type="BinFileDataSource" />
+    <document>
         <entity name="tika-test" processor="TikaEntityProcessor" url="../contrib/extraction/src/test/resources/solr-word.pdf" format="text">
                 <field column="Author" name="author" meta="true"/>
                 <field column="title" name="title" meta="true"/>
                 <field column="text" name="text"/>
         </entity>
-        </document>
+    </document>
 </dataConfig>