diff --git a/htdocs/modulebuilder/index.php b/htdocs/modulebuilder/index.php
index 93550e2c928..28183dfd571 100644
--- a/htdocs/modulebuilder/index.php
+++ b/htdocs/modulebuilder/index.php
@@ -1942,6 +1942,70 @@ if ($dirins && $action == 'generatepackage') {
 }
 
 
+// Delete permission
+if ($dirins && $action == 'confirm_deleteright' && !empty($module) && GETPOST('permskey', 'int')) {
+	$error = 0;
+	// load class and check if right exist
+	$pathtofile = $listofmodules[strtolower($module)]['moduledescriptorrelpath'];
+	dol_include_once($pathtofile);
+		$class = 'mod'.$module;
+	if (class_exists($class)) {
+		try {
+			$moduleobj = new $class($db);
+		} catch (Exception $e) {
+			$error++;
+			dol_print_error($db, $e->getMessage());
+		}
+	}
+
+		$permissions = $moduleobj->rights;
+		$key = (int) GETPOST('permskey', 'int')-1;
+		//get permission want to delete from permissions array
+		$x1 = $permissions[$key][1];
+		$x2 = $permissions[$key][4];
+		$x3 = $permissions[$key][5];
+		//prepare right want to delete
+		$rightTodelete = "
+		\$this->rights[\$r][0] = \$this->numero . sprintf('%02d', \$r + 1); 
+		\$this->rights[\$r][1] = '$x1'; 
+		\$this->rights[\$r][4] = '$x2';
+		\$this->rights[\$r][5] = '$x3'; 
+		\$r++;
+		";
+
+
+		$moduledescriptorfile = $dirins.'/'.strtolower($module).'/core/modules/mod'.$module.'.class.php';
+		$check = dolReplaceInFile($moduledescriptorfile, array($rightTodelete => ''."\n"));
+	if ($check > 0) {
+		//check if all permissions of object was deleted
+		$permsForObj = array();
+		foreach ($permissions as $perms) {
+			$permsForObj[] = $perms[4];
+		}
+		$permsForObj = array_count_values($permsForObj);
+		//var_dump($permsForObj[$permissions[$key][4]]);exit;
+		if ($permsForObj[$permissions[$key][4]] == 1) {
+			$delObjStart = dolReplaceInFile($moduledescriptorfile, array('/*'.strtoupper($permissions[$key][4].'*/') => '','/*END '.strtoupper($permissions[$key][4].'*/') => ''));
+		}
+	}
+	if (!$error) {
+		// check if module is enabled
+		if (isModEnabled(strtolower($module))) {
+			$result = unActivateModule(strtolower($module));
+			dolibarr_set_const($db, "MAIN_IHM_PARAMS_REV", (int) $conf->global->MAIN_IHM_PARAMS_REV + 1, 'chaine', 0, '', $conf->entity);
+			if ($result) {
+				setEventMessages($result, null, 'errors');
+			}
+			header("Location: ".DOL_URL_ROOT.'/modulebuilder/index.php?tab=permissions&module='.$module);
+			setEventMessages($langs->trans('PermissionDeletedSuccesfuly'), null);
+			setEventMessages($langs->trans('WarningModuleNeedRefrech', $langs->transnoentities($module)), null, 'warnings');
+		} else {
+			header("Location: ".DOL_URL_ROOT.'/modulebuilder/index.php?tab=permissions&module='.$module);
+			setEventMessages($langs->trans('PermissionDeletedSuccesfuly'), null);
+			exit;
+		}
+	}
+}
 // Save file
 if ($action == 'savefile' && empty($cancel)) {
 	$relofcustom = basename($dirins);