1 files changed, 2 insertions, 2 deletions
diff --git a/BackEnd/Timeline/Services/Api/HighlightTimelineService.cs b/BackEnd/Timeline/Services/Api/HighlightTimelineService.cs
index 9ef8ea84..419aa68d 100644
--- a/BackEnd/Timeline/Services/Api/HighlightTimelineService.cs
+++ b/BackEnd/Timeline/Services/Api/HighlightTimelineService.cs
@@ -95,7 +95,7 @@ namespace Timeline.Services.Api
             if (!await _timelineService.CheckExistence(timelineId))
                 throw new TimelineNotExistException(timelineId);
 
-            if (operatorId.HasValue && !await _userService.CheckUserExistence(operatorId.Value))
+            if (operatorId.HasValue && !await _userService.CheckUserExistenceAsync(operatorId.Value))
             {
                 throw new UserNotExistException(null, operatorId.Value, "User with given operator id does not exist.", null);
             }
@@ -121,7 +121,7 @@ namespace Timeline.Services.Api
             if (!await _timelineService.CheckExistence(timelineId))
                 throw new TimelineNotExistException(timelineId);
 
-            if (operatorId.HasValue && !await _userService.CheckUserExistence(operatorId.Value))
+            if (operatorId.HasValue && !await _userService.CheckUserExistenceAsync(operatorId.Value))
             {
                 throw new UserNotExistException(null, operatorId.Value, "User with given operator id does not exist.", null);
             }