diff --git a/api/src/services/collections.ts b/api/src/services/collections.ts
index 751be92fcf..40acbb023e 100644
--- a/api/src/services/collections.ts
+++ b/api/src/services/collections.ts
@@ -290,7 +290,7 @@ export default class CollectionsService {
 			} else {
 				await this.knex('directus_relations')
 					.update({ one_field: null })
-					.where({ one_collection: collection, field: relation.one_field });
+					.where({ one_collection: collection, one_field: relation.one_field });
 				await fieldsService.deleteField(relation.many_collection, relation.many_field);
 			}
 		}