diff --git a/app/controllers/concerns/commentable_actions.rb b/app/controllers/concerns/commentable_actions.rb
index 287f2d418..489d1857c 100644
--- a/app/controllers/concerns/commentable_actions.rb
+++ b/app/controllers/concerns/commentable_actions.rb
@@ -34,7 +34,7 @@ module CommentableActions
 
   def suggest
     @limit = 5
-    @resources = @search_terms.present? ? resource_model.search(@search_terms) : nil
+    @resources = @search_terms.present? ? resource_relation.search(@search_terms) : nil
   end
 
   def create
diff --git a/app/controllers/concerns/polymorphic.rb b/app/controllers/concerns/polymorphic.rb
index 10d64698d..6ac4b5c1c 100644
--- a/app/controllers/concerns/polymorphic.rb
+++ b/app/controllers/concerns/polymorphic.rb
@@ -10,6 +10,10 @@ module Polymorphic
       @resource_name ||= resource_model.to_s.downcase
     end
 
+    def resource_relation
+      @resource_relation ||= resource_model.all
+    end
+
     def set_resource_instance
       instance_variable_set("@#{resource_name}", @resource)
     end