diff --git a/solr/core/src/test-files/solr/collection1/conf/schema_codec.xml b/solr/core/src/test-files/solr/collection1/conf/schema_codec.xml
index b8a1a0b5e56..6f2f04a2003 100644
--- a/solr/core/src/test-files/solr/collection1/conf/schema_codec.xml
+++ b/solr/core/src/test-files/solr/collection1/conf/schema_codec.xml
@@ -22,7 +22,7 @@
   <fieldType name="string_direct" class="solr.StrField" postingsFormat="Direct" docValuesFormat="Asserting" />
   <fieldType name="string_standard" class="solr.StrField" postingsFormat="Lucene90"/>
 
-  <fieldType name="string_disk" class="solr.StrField" docValuesFormat="Lucene80"/>
+  <fieldType name="string_disk" class="solr.StrField" />
 
   <fieldType name="string" class="solr.StrField"/>