diff --git a/install_misc/environment_Makefile.PL b/install_misc/environment_Makefile.PL
index 1eae0d1b61..ed61f00e9c 100644
--- a/install_misc/environment_Makefile.PL
+++ b/install_misc/environment_Makefile.PL
@@ -55,10 +55,10 @@ export DB_NAME='koha'
 export DB_USER='kohaadmin'
 export DB_PASS='katikoan'
 
-export AUTH_INDEX_MODE=grs1
-#export AUTH_INDEX_MODE=dom
-export BIB_INDEX_MODE=grs1
-#export BIB_INDEX_MODE=dom
+#export AUTH_INDEX_MODE=grs1
+export AUTH_INDEX_MODE=dom
+#export BIB_INDEX_MODE=grs1
+export BIB_INDEX_MODE=dom
 
 #export ZEBRA_MARC_FORMAT=unimarc
 export ZEBRA_MARC_FORMAT=marc21