diff --git a/db/migrations/20180304154225_group_type_column.js b/db/migrations/20180304154225_group_type_column.js
new file mode 100644
index 0000000000000000000000000000000000000000..61f2aaa6967712521a774cc1a052df6e3f21055d
--- /dev/null
+++ b/db/migrations/20180304154225_group_type_column.js
@@ -0,0 +1,17 @@
+
+exports.up = function(knex, Promise) {
+    return knex.schema.table('groups', function(table) {
+        table.enum('type', ['simple', 'meta', 'error']).notNullable().defaultTo('error');
+    }).then( () => {
+    return knex('simple_groups').update({type : "simple"}).then(() => {
+    return knex('meta_groups').update({type : "meta"});
+    });
+    });
+  
+};
+
+exports.down = function(knex, Promise) {
+  return knex.schema.table('groups', function(table) {
+      table.dropColumn('type');
+  });
+};
diff --git a/db/seeds/01_create_groups.js b/db/seeds/01_create_groups.js
index 35948da68c3b186d871dc6907ee20a0de4a2d55b..26b10129f074056df5fc0063ed2c92c1489ff176 100644
--- a/db/seeds/01_create_groups.js
+++ b/db/seeds/01_create_groups.js
@@ -12,34 +12,40 @@ exports.seed = function(knex, Promise) {
           website: 'br.binets.fr',
           description: 'Le Binet Réseau est responsable du réseau internet des élèves sur le campus de l\'Ecole polytechnique.',
           school: 'polytechnique',
-          parentuid: 'kes'
+          parentuid: 'kes',
+          type : 'simple'
         },{
           name: 'JTX',
           uid: 'jtx',
           website: 'binet-jtx.com',
           school: 'polytechnique',
-          parentuid: 'kes'
+          parentuid: 'kes',
+          type : 'simple'
         },{
           name: 'Kès',
           uid: 'kes',
           website: 'kes.binets.fr',
-          school: 'polytechnique'
+          school: 'polytechnique',
+          type : 'simple'
         },{
           name: 'DaTA',
           uid: 'data',
           website: 'data-ensta.fr',
           school: 'ensta',
-          parentuid: 'bdeensta'
+          parentuid: 'bdeensta',
+          type : 'simple'
         },{
           name: 'Laser Wave',
           uid: 'laserwave',
           website: 'laserwave.fr',
-          school: 'supoptique'
+          school: 'supoptique',
+          type : 'simple'
         },{
           name: 'BDE Ensta',
           uid: 'bdeensta',
           website: 'http://bde.ensta-paristech.fr/',
-          school: 'ensta'
+          school: 'ensta',
+          type : 'simple'
         }
       ];
 
diff --git a/db/seeds/04_make_metagroups.js b/db/seeds/04_make_metagroups.js
index be6fbeade3cfdf1460ee312adcaf02001180699d..432bb33d1b96b6f4fda099d16cbf35d471193c6a 100644
--- a/db/seeds/04_make_metagroups.js
+++ b/db/seeds/04_make_metagroups.js
@@ -9,12 +9,14 @@ exports.seed = function(knex, Promise) {
             name: 'Fédérez',
             uid: 'federez',
             website: 'federez.io',
-            description: "L'association de toutes les associations de réseau des écoles"
+            description: "L'association de toutes les associations de réseau des écoles",
+            type : 'meta'
           },
           { 
             name: 'BSCkBl',
             uid: 'bsckbl',
-            website: 'bsckbl.binets.fr'
+            website: 'bsckbl.binets.fr',
+            type : 'meta'
           }
         ]);
       });