diff --git a/lib/jsonapi/active_relation_retrieval_v10.rb b/lib/jsonapi/active_relation_retrieval_v10.rb
index 0e3a7760..e2ee9b2c 100644
--- a/lib/jsonapi/active_relation_retrieval_v10.rb
+++ b/lib/jsonapi/active_relation_retrieval_v10.rb
@@ -465,7 +465,7 @@ def find_related_monomorphic_fragments(source_fragments, relationship, options,
 
           if connect_source_identity
             inverse_relationship = relationship._inverse_relationship
-            fragments[rid].add_related_identity(inverse_relationship.name, source_rid) if inverse_relationship``.present?
+            fragments[rid].add_related_identity(inverse_relationship.name, source_rid) if inverse_relationship.present?
           end
         end