diff --git a/docs/cancellations.ru.md b/docs/en/cancellations.md
rename from docs/cancellations.ru.md
rename to docs/en/cancellations.md
diff --git a/docs/observable.ru.md b/docs/en/observable.md
rename from docs/observable.ru.md
rename to docs/en/observable.md
--- a/docs/observable.ru.md
+++ b/docs/en/observable.md
@@ -31,7 +31,7 @@ events.on(
     // обработчик очередного события
     msg => {
         progress.setValue(msg);
-    }.
+    },
     // обработчик ошибки
     e => {
         progress.showError(e);
diff --git a/docs/cancellations.ru.md b/docs/ru/cancellations.md
copy from docs/cancellations.ru.md
copy to docs/ru/cancellations.md
diff --git a/docs/observable.ru.md b/docs/ru/observable.md
copy from docs/observable.ru.md
copy to docs/ru/observable.md
--- a/docs/observable.ru.md
+++ b/docs/ru/observable.md
@@ -31,7 +31,7 @@ events.on(
     // обработчик очередного события
     msg => {
         progress.setValue(msg);
-    }.
+    },
     // обработчик ошибки
     e => {
         progress.showError(e);
diff --git a/src/ts/Observable.ts b/src/ts/Observable.ts
--- a/src/ts/Observable.ts
+++ b/src/ts/Observable.ts
@@ -64,7 +64,7 @@ export class Observable<T> implements IO
             destroy() {
                 me._removeObserver(this);
             }
-        }
+        };
 
         this._addObserver(observer);