diff --git a/arlas/cli/org.py b/arlas/cli/org.py
index 506a1cf..a2e8593 100644
--- a/arlas/cli/org.py
+++ b/arlas/cli/org.py
@@ -144,15 +144,15 @@ def add_user_to_group(org_id: str = typer.Argument(help="Organisation's identifi
                       user_id: str = typer.Argument(help="User identifier"),
                       group_id: str = typer.Argument(help="Group identifier")):
     config = variables["arlas"]
-    print(Service.add_permission_to_group_in_organisation(config, org_id, user_id, group_id))
+    print(Service.add_user_to_organisation_group(config, org_id, user_id, group_id))
 
 
-@org.command(help="Remove a user from a group within the organisation", name="delete_user_from_group", epilog=variables["help_epilog"])
-def delete_user_from_group(org_id: str = typer.Argument(help="Organisation's identifier"),
+@org.command(help="Remove a user from a group within the organisation", name="remove_user_from_group", epilog=variables["help_epilog"])
+def remove_user_from_group(org_id: str = typer.Argument(help="Organisation's identifier"),
                            user_id: str = typer.Argument(help="User identifier"),
                            group_id: str = typer.Argument(help="Group identifier")):
     config = variables["arlas"]
-    print(Service.delete_permission_from_group_in_organisation(config, org_id, user_id, group_id))
+    print(Service.remove_user_from_organisation_group(config, org_id, user_id, group_id))
 
 
 @org.command(help="Add and return an new API Key with permissions associated to provided groups. Use the key id and key secret with the arlas-api-key-id and arlas-api-key-secret headers.", name="add-apikey",
diff --git a/arlas/cli/service.py b/arlas/cli/service.py
index 4e535e7..07aee0e 100644
--- a/arlas/cli/service.py
+++ b/arlas/cli/service.py
@@ -189,6 +189,14 @@ def add_permission_to_group_in_organisation(arlas: str, oid: str, role_id: str,
     def delete_permission_from_group_in_organisation(arlas: str, oid: str, role_id: str, permission_id: str):
         return Service.__arlas__(arlas, "/".join(["organisations", oid, "roles", role_id, "permissions", permission_id]), delete=True, service=Services.iam)
 
+    @staticmethod
+    def add_user_to_organisation_group(arlas: str, oid: str, uid: str, role_id: str):
+        return Service.__arlas__(arlas, "/".join(["organisations", oid, "users", uid, "roles", role_id]), post="{}", service=Services.iam)
+
+    @staticmethod
+    def remove_user_from_organisation_group(arlas: str, oid: str, uid: str, role_id: str):
+        return Service.__arlas__(arlas, "/".join(["organisations", oid, "users", uid, "roles", role_id]), delete=True, service=Services.iam)
+
     @staticmethod
     def add_role_in_organisation(arlas: str, oid: str, role_name: str, role_description: str):
         return Service.__arlas__(arlas, "/".join(["organisations", oid, "roles"]), post=json.dumps({"name": role_name, "description": role_description}), service=Services.iam)