diff --git a/lib/static_model.rb b/lib/static_model.rb
index 86bf8d62f9af7a1fae412c597ab51ad28b0f306a..27805817f4d099491c13624f19ca2405397ec047 100644
--- a/lib/static_model.rb
+++ b/lib/static_model.rb
@@ -40,10 +40,6 @@ def destroyed?
   end
 
   def ==(other)
-    if other.is_a? ::StaticModel
-      id == other.id
-    else
-      super
-    end
+    other.present? && other.is_a?(self.class) && id == other.id
   end
 end