diff --git a/API_Interfaces.txt b/API_Interfaces.txt
index 0219930..2af2eaa 100644
--- a/API_Interfaces.txt
+++ b/API_Interfaces.txt
@@ -21,6 +21,6 @@ UserInfoAPI (api/userInfo)
 #######################
 GET -> Get the current logged user, return None if no one is connected
     Out:
-        200 -> USER = <USER_OBJECT>|None : Dictionnary containing user infos or None
+        200 -> USER = <USER_OBJECT>|None : Dictionary containing user infos or None
 
 
diff --git a/backend/OLA.mysql b/backend/OLA.mysql
index e64984d..7d5ac6f 100644
--- a/backend/OLA.mysql
+++ b/backend/OLA.mysql
@@ -23,14 +23,15 @@ CREATE TABLE IF NOT EXISTS SETTINGS
 
 CREATE TABLE IF NOT EXISTS `GROUP`
 (
-    id BIGINT NOT NULL AUTO_INCREMENT,
-    `name` VARCHAR(128) NOT NULL UNIQUE,
-    `year` CHARACTER(4) NOT NULL,
-    class_short VARCHAR(128) NOT NULL,
-    class_long VARCHAR(512),
-    department VARCHAR(256),
-    resp_id BIGINT,
-    ressources_dir VARCHAR(512),
+  id             BIGINT NOT NULL AUTO_INCREMENT,
+  `name`         VARCHAR(128) NOT NULL UNIQUE,
+  `year`         CHARACTER(4) NOT NULL,
+  class_short    VARCHAR(128) NOT NULL,
+  class_long     VARCHAR(512),
+  department     VARCHAR(256),
+  resp_id        BIGINT,
+  sec_id         BIGINT,
+  ressources_dir VARCHAR(512),
     PRIMARY KEY(id)
 ) ENGINE = INNODB;
 
@@ -96,7 +97,11 @@ CREATE TABLE IF NOT EXISTS HASHTABLE
 # Create FKs
 ALTER TABLE `GROUP`
     ADD    FOREIGN KEY (resp_id)
-    REFERENCES `USER`(id)
+    REFERENCES `USER`(id);
+
+ALTER TABLE `GROUP`
+  ADD FOREIGN KEY (sec_id)
+REFERENCES `USER` (id)
 ;
 
 ALTER TABLE TUTORSHIP
diff --git a/backend/tests/api/test_Auth.py b/backend/tests/api/test_Auth.py
index f8a6b0a..b13869f 100644
--- a/backend/tests/api/test_Auth.py
+++ b/backend/tests/api/test_Auth.py
@@ -18,7 +18,8 @@ class AuthTestCase(unittest.TestCase):
             res = query.execute()
             cls.uid = res.lastrowid
             query = GROUP.insert().values(name="test", year="2017", class_long="classe toto", class_short="toto",
-                                          department="plop", ressources_dir="/plop/toto", resp_id=cls.uid)
+                                          department="plop", ressources_dir="/plop/toto", resp_id=cls.uid,
+                                          sec_id=cls.uid)
             res = query.execute()
             cls.gid = res.lastrowid
             query = TUTORSHIP.insert().values(student_id=cls.uid, ptutor_id=cls.uid, group_id=cls.gid)