diff --git a/ExpressAPI/src/routes/AssignmentRoutes.ts b/ExpressAPI/src/routes/AssignmentRoutes.ts
index 052a8bd9399d139bfe6805239a7c463150c9668d..dd89e3a6e96ec4fde69f3f15e3dea8dd1a63f715 100644
--- a/ExpressAPI/src/routes/AssignmentRoutes.ts
+++ b/ExpressAPI/src/routes/AssignmentRoutes.ts
@@ -61,8 +61,8 @@ class AssignmentRoutes implements RoutesManager {
         backend.patch('/assignments/:assignmentNameOrUrl/publish', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), this.changeAssignmentPublishedStatus(true).bind(this));
         backend.patch('/assignments/:assignmentNameOrUrl/unpublish', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), this.changeAssignmentPublishedStatus(false).bind(this));
 
-        backend.post('/assignments/:assignmentNameOrUrl/corrections', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), ParamsValidatorMiddleware.validate(this.assignmentAddCorrigeValidator), this.addUpdateAssignmentCorrection(false).bind(this));
-        backend.patch('/assignments/:assignmentNameOrUrl/corrections/:exerciseIdOrUrl', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), this.addUpdateAssignmentCorrection(true).bind(this));
+        backend.post('/assignments/:assignmentNameOrUrl/corrections', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), ParamsValidatorMiddleware.validate(this.assignmentAddCorrigeValidator), this.linkUpdateAssignmentCorrection(false).bind(this));
+        backend.patch('/assignments/:assignmentNameOrUrl/corrections/:exerciseIdOrUrl', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), this.linkUpdateAssignmentCorrection(true).bind(this));
     }
 
     // Get an assignment by its name or gitlab url
@@ -203,7 +203,7 @@ class AssignmentRoutes implements RoutesManager {
         };
     }
 
-    private addUpdateAssignmentCorrection(isUpdate: boolean): (req: express.Request, res: express.Response) => Promise<void> {
+    private linkUpdateAssignmentCorrection(isUpdate: boolean): (req: express.Request, res: express.Response) => Promise<void> {
         return async (req: express.Request, res: express.Response): Promise<void> => {
             if ( req.boundParams.exercise?.assignmentName != req.boundParams.assignment?.name ) {
                 return req.session.sendResponse(res, StatusCodes.BAD_REQUEST, undefined, 'The exercise does not belong to the assignment', DojoStatusCode.ASSIGNMENT_EXERCISE_NOT_RELATED);
@@ -221,6 +221,10 @@ class AssignmentRoutes implements RoutesManager {
 
             const lastCommit = await GitlabManager.getRepositoryLastCommit(req.boundParams.exercise!.gitlabId);
             if ( lastCommit ) {
+                if ( !isUpdate ) {
+                    await GitlabManager.changeRepositoryVisibility(req.boundParams.assignment.gitlabId, GitlabVisibility.INTERNAL);
+                }
+
                 await db.exercise.update({
                                              where: {
                                                  id: req.boundParams.exercise!.id