diff --git a/app/models/logic/champ_value.rb b/app/models/logic/champ_value.rb
index dee68529f..d0ade372d 100644
--- a/app/models/logic/champ_value.rb
+++ b/app/models/logic/champ_value.rb
@@ -44,6 +44,8 @@ class Logic::ChampValue < Logic::Term
       targeted_champ.selected
     when "Champs::MultipleDropDownListChamp"
       targeted_champ.selected_options
+    when "Champs::DepartementChamp"
+      targeted_champ.to_s
     end
   end
 
diff --git a/spec/models/routing_engine_spec.rb b/spec/models/routing_engine_spec.rb
index ef70eb589..f123132df 100644
--- a/spec/models/routing_engine_spec.rb
+++ b/spec/models/routing_engine_spec.rb
@@ -2,16 +2,6 @@ describe RoutingEngine, type: :model do
   include Logic
 
   describe '.compute' do
-    let(:procedure) do
-      create(:procedure,
-        types_de_champ_public: [{ type: :drop_down_list, libelle: 'Votre ville', options: ['Paris', 'Lyon', 'Marseille'] }]).tap do |p|
-        p.groupe_instructeurs.create(label: 'a second group')
-        p.groupe_instructeurs.create(label: 'a third group')
-      end
-    end
-
-    let(:drop_down_tdc) { procedure.draft_revision.types_de_champ.first }
-
     let(:dossier) { create(:dossier, procedure:) }
     let(:defaut_groupe) { procedure.defaut_groupe_instructeur }
     let(:gi_2) { procedure.groupe_instructeurs.find_by(label: 'a second group') }
@@ -21,43 +11,75 @@ describe RoutingEngine, type: :model do
       dossier.groupe_instructeur
     end
 
-    context 'without any rules' do
-      it { is_expected.to eq(defaut_groupe) }
-    end
-
-    context 'without any matching rules' do
-      before do
-        procedure.groupe_instructeurs.each do |gi|
-          gi.update(routing_rule: constant(false))
+    context 'with a drop down list type de champ' do
+      let(:procedure) do
+        create(:procedure,
+          types_de_champ_public: [{ type: :drop_down_list, libelle: 'Votre ville', options: ['Paris', 'Lyon', 'Marseille'] }]).tap do |p|
+          p.groupe_instructeurs.create(label: 'a second group')
+          p.groupe_instructeurs.create(label: 'a third group')
         end
       end
 
-      it { is_expected.to eq(defaut_groupe) }
+      let(:drop_down_tdc) { procedure.draft_revision.types_de_champ.first }
+
+      context 'without any rules' do
+        it { is_expected.to eq(defaut_groupe) }
+      end
+
+      context 'without any matching rules' do
+        before do
+          procedure.groupe_instructeurs.each do |gi|
+            gi.update(routing_rule: constant(false))
+          end
+        end
+
+        it { is_expected.to eq(defaut_groupe) }
+      end
+
+      context 'with rules not configured yet' do
+        before do
+          procedure.groupe_instructeurs.each do |gi|
+            gi.update(routing_rule: ds_eq(empty, empty))
+          end
+        end
+
+        it { is_expected.to eq(defaut_groupe) }
+      end
+
+      context 'with a matching rule' do
+        before do
+          gi_2.update(routing_rule: ds_eq(champ_value(drop_down_tdc.stable_id), constant('Lyon')))
+          dossier.champs.first.update(value: 'Lyon')
+        end
+
+        it { is_expected.to eq(gi_2) }
+      end
+
+      context 'with a closed gi with a matching rule' do
+        before { gi_2.update(routing_rule: constant(true), closed: true) }
+
+        it { is_expected.to eq(defaut_groupe) }
+      end
     end
 
-    context 'with rules not configured yet' do
-      before do
-        procedure.groupe_instructeurs.each do |gi|
-          gi.update(routing_rule: ds_eq(empty, empty))
+    context 'with a departements type de champ' do
+      let(:procedure) do
+        create(:procedure, types_de_champ_public: [{ type: :departements }]).tap do |p|
+          p.groupe_instructeurs.create(label: 'a second group')
+          p.groupe_instructeurs.create(label: 'a third group')
         end
       end
 
-      it { is_expected.to eq(defaut_groupe) }
-    end
+      let(:departements_tdc) { procedure.draft_revision.types_de_champ.first }
 
-    context 'with a matching rule' do
-      before do
-        gi_2.update(routing_rule: ds_eq(champ_value(drop_down_tdc.stable_id), constant('Lyon')))
-        dossier.champs.first.update(value: 'Lyon')
+      context 'with a matching rule' do
+        before do
+          gi_2.update(routing_rule: ds_eq(champ_value(departements_tdc.stable_id), constant('43 – Haute-Loire')))
+          dossier.champs.first.update(value: 'Haute-Loire')
+        end
+
+        it { is_expected.to eq(gi_2) }
       end
-
-      it { is_expected.to eq(gi_2) }
-    end
-
-    context 'with a closed gi with a matching rule' do
-      before { gi_2.update(routing_rule: constant(true), closed: true) }
-
-      it { is_expected.to eq(defaut_groupe) }
     end
   end
 end