diff --git a/spec/models/synapse_spec.rb b/spec/models/synapse_spec.rb
index 2363394c..f42427b8 100644
--- a/spec/models/synapse_spec.rb
+++ b/spec/models/synapse_spec.rb
@@ -8,6 +8,8 @@ RSpec.describe Synapse, type: :model do
   it { is_expected.to belong_to :topic2 }
   it { is_expected.to have_many :maps }
   it { is_expected.to have_many :mappings }
+  it { is_expected.to validate_presence_of :permission }
+  it { is_expected.to validate_inclusion_of(:permission).in_array Perm::ISSIONS.map(&:to_s) }
 
   context 'permissions' do
     let(:owner) { create :user }