diff --git a/spec/lib/siade/entreprise_adapter_spec.rb b/spec/lib/siade/entreprise_adapter_spec.rb
index bf3123672..a47c84e4a 100644
--- a/spec/lib/siade/entreprise_adapter_spec.rb
+++ b/spec/lib/siade/entreprise_adapter_spec.rb
@@ -9,7 +9,7 @@ describe SIADE::EntrepriseAdapter do
   end
 
   it '#to_params class est une Hash ?' do
-    expect(subject.class).to eq (Hash)
+    expect(subject).to be_an_instance_of(Hash)
   end
 
   context 'Attributs Entreprises' do