diff --git a/solr.cfg b/solr.cfg
index 93d4a6b..31137fb 100644
--- a/solr.cfg
+++ b/solr.cfg
@@ -68,8 +68,8 @@ index =
     name:UID              type:string stored:true required:true
     name:get_full_title   type:string stored:true
     name:has_final_unsigned_version type:boolean stored:true
-    name:sender_as_text   type:string stored:true
-    name:recipients_as_text type:string stored:true
+    name:sender_as_text   type:text stored:true
+    name:recipients_as_text type:text stored:true
     name:object_folders   type:string stored:false multivalued:true
     name:thesaurus_keywords   type:string stored:false multivalued:true
     name:reception_date   type:date stored:true