diff --git a/docs-web/src/main/java/com/sismics/docs/rest/resource/GroupResource.java b/docs-web/src/main/java/com/sismics/docs/rest/resource/GroupResource.java
index b3e2f943..da2d2a60 100644
--- a/docs-web/src/main/java/com/sismics/docs/rest/resource/GroupResource.java
+++ b/docs-web/src/main/java/com/sismics/docs/rest/resource/GroupResource.java
@@ -179,6 +179,7 @@ public class GroupResource extends BaseResource {
      * @apiSuccess {String} status Status OK
      * @apiError (client) ForbiddenError Access denied
      * @apiError (client) NotFound Group not found
+     * @apiError (client) GroupUsedInRouteModel The group is used in a route model
      * @apiPermission admin
      * @apiVersion 1.5.0
      *
diff --git a/docs-web/src/main/java/com/sismics/docs/rest/resource/UserResource.java b/docs-web/src/main/java/com/sismics/docs/rest/resource/UserResource.java
index c16c4625..d2f343a3 100644
--- a/docs-web/src/main/java/com/sismics/docs/rest/resource/UserResource.java
+++ b/docs-web/src/main/java/com/sismics/docs/rest/resource/UserResource.java
@@ -436,6 +436,7 @@ public class UserResource extends BaseResource {
      * @apiGroup User
      * @apiSuccess {String} status Status OK
      * @apiError (client) ForbiddenError Access denied or the user cannot be deleted
+     * @apiError (client) UserUsedInRouteModel The user is used in a route model
      * @apiPermission user
      * @apiVersion 1.5.0
      *
@@ -501,6 +502,7 @@ public class UserResource extends BaseResource {
      * @apiSuccess {String} status Status OK
      * @apiError (client) ForbiddenError Access denied or the user cannot be deleted
      * @apiError (client) UserNotFound The user does not exist
+     * @apiError (client) UserUsedInRouteModel The user is used in a route model
      * @apiPermission admin
      * @apiVersion 1.5.0
      *