1 files changed, 2 insertions, 2 deletions

diff --git a/language-web/src/main/js/xtext/ValidationService.ts b/language-web/src/main/js/xtext/ValidationService.ts
index 31c8f716..8e4934ac 100644
--- a/language-web/src/main/js/xtext/ValidationService.ts
+++ b/language-web/src/main/js/xtext/ValidationService.ts
@@ -8,9 +8,9 @@ import { isValidationResult } from './xtextServiceResults';
 const log = getLogger('xtext.ValidationService');
 
 export class ValidationService {
-  private store: EditorStore;
+  private readonly store: EditorStore;
 
-  private updateService: UpdateService;
+  private readonly updateService: UpdateService;
 
   constructor(store: EditorStore, updateService: UpdateService) {
     this.store = store;