diff --git a/src/sssom_schema/schema/sssom_schema.yaml b/src/sssom_schema/schema/sssom_schema.yaml
index b35c9f45..ee8be21f 100644
--- a/src/sssom_schema/schema/sssom_schema.yaml
+++ b/src/sssom_schema/schema/sssom_schema.yaml
@@ -457,7 +457,7 @@ slots:
     range: EntityReference
     multivalued: true
   match_string:
-    description: Strings that are shared by subj/obj. It is recommended to indicate the 
+    description: String that is shared by subj/obj. It is recommended to indicate the 
       fields for the match using the object and subject_match_field slots.
     range: string
     multivalued: true