diff --git a/src/panel/graph_panel/controllers/analytic_controller.ts b/src/panel/graph_panel/controllers/analytic_controller.ts
index d6311df..3469652 100644
--- a/src/panel/graph_panel/controllers/analytic_controller.ts
+++ b/src/panel/graph_panel/controllers/analytic_controller.ts
@@ -162,7 +162,7 @@ export class AnalyticController {
       this.labelingUnit.segments.remove(s.id);
     });
     this._labelingDataDeletedSegments.getSegments().forEach(s => {
-      s.deleted = false;
+      this.labelingUnit.segments.addSegment(s);
     });
     this.dropLabeling();
   }
@@ -298,7 +298,7 @@ export class AnalyticController {
           }
         }
 
-        var expanded = s.expandDist(rangeDist, 0.01);
+        const expanded = s.expandDist(rangeDist, 0.01);
         options.grid.markings.push({
           xaxis: { from: expanded.from, to: expanded.to },
           color: segmentFillColor
@@ -317,11 +317,10 @@ export class AnalyticController {
   }
 
   deleteLabelingAnalyticUnitSegmentsInRange(from: number, to: number) {
-    let allRemovedSegs = this.labelingUnit.removeSegmentsInRange(from, to);
+    const allRemovedSegs = this.labelingUnit.removeSegmentsInRange(from, to);
     allRemovedSegs.forEach(s => {
       if(!this._labelingDataAddedSegments.has(s.id)) {
         this._labelingDataDeletedSegments.addSegment(s);
-        this.labelingUnit.addLabeledSegment(s, true);
       }
     });
     this._labelingDataAddedSegments.removeInRange(from, to);
diff --git a/src/panel/graph_panel/models/analytic_unit.ts b/src/panel/graph_panel/models/analytic_unit.ts
index 3a7ea50..2841548 100644
--- a/src/panel/graph_panel/models/analytic_unit.ts
+++ b/src/panel/graph_panel/models/analytic_unit.ts
@@ -88,9 +88,6 @@ export class AnalyticUnit {
 
   removeSegmentsInRange(from: number, to: number): AnalyticSegment[] {
     let deletedSegments = this._segmentSet.removeInRange(from, to);
-    deletedSegments.forEach(s => {
-      s.deleted = true;
-    });
     return deletedSegments;
   }
 
diff --git a/src/panel/graph_panel/services/analytic_service.ts b/src/panel/graph_panel/services/analytic_service.ts
index cb4f6e3..01663d7 100644
--- a/src/panel/graph_panel/services/analytic_service.ts
+++ b/src/panel/graph_panel/services/analytic_service.ts
@@ -66,20 +66,22 @@ export class AnalyticService {
   }
 
   async updateSegments(
-    id: AnalyticUnitId, addedSegments: SegmentsSet<Segment>, removedSegments: SegmentsSet<Segment>
+    id: AnalyticUnitId, addedSegments: SegmentsSet<AnalyticSegment>, removedSegments: SegmentsSet<AnalyticSegment>
   ): Promise<SegmentId[]> {
-    const getJSONs = (segs: SegmentsSet<Segment>) => segs.getSegments().map(segment => ({
+    const getJSONs = (segs: SegmentsSet<AnalyticSegment>) => segs.getSegments().map(segment => ({
       from: segment.from,
-      to: segment.to
+      to: segment.to,
+      labeled: segment.labeled,
+      deleted: segment.deleted
     }));
 
-    var payload = {
+    const payload = {
       id,
       addedSegments: getJSONs(addedSegments),
       removedSegments: removedSegments.getSegments().map(s => s.id)
     };
 
-    var data = await this.patch('/segments', payload);
+    const data = await this.patch('/segments', payload);
     if(data.addedIds === undefined) {
       throw new Error('Server didn`t send addedIds');
     }