1 files changed, 5 insertions, 5 deletions
diff --git a/src/client/northstar/dash-nodes/HistogramBox.tsx b/src/client/northstar/dash-nodes/HistogramBox.tsx
index 5e7b867b3..ed556cf45 100644
--- a/src/client/northstar/dash-nodes/HistogramBox.tsx
+++ b/src/client/northstar/dash-nodes/HistogramBox.tsx
@@ -19,7 +19,7 @@ import { HistogramLabelPrimitives } from "./HistogramLabelPrimitives";
 import { StyleConstants } from "../utils/StyleContants";
 import { NumCast, Cast } from "../../../new_fields/Types";
 import { listSpec } from "../../../new_fields/Schema";
-import { Doc } from "../../../new_fields/Doc";
+import { Doc, DocListCast } from "../../../new_fields/Doc";
 import { Id } from "../../../new_fields/RefField";
 
 
@@ -117,15 +117,15 @@ export class HistogramBox extends React.Component<FieldViewProps> {
             runInAction(() => {
                 this.HistoOp = histoOp ? histoOp.HistoOp : HistogramOperation.Empty;
                 if (this.HistoOp !== HistogramOperation.Empty) {
-                    reaction(() => Cast(this.props.Document.linkedFromDocs, listSpec(Doc), []).filter(d => d).map(d => d as Doc), (docs) => this.HistoOp.Links.splice(0, this.HistoOp.Links.length, ...docs), { fireImmediately: true });
-                    reaction(() => Cast(this.props.Document.brushingDocs, listSpec(Doc), []).length,
+                    reaction(() => DocListCast(this.props.Document.linkedFromDocs), (docs) => this.HistoOp.Links.splice(0, this.HistoOp.Links.length, ...docs), { fireImmediately: true });
+                    reaction(() => DocListCast(this.props.Document.brushingDocs).length,
                         () => {
-                            let brushingDocs = Cast(this.props.Document.brushingDocs, listSpec(Doc), []).filter(d => d).map(d => d as Doc);
+                            let brushingDocs = DocListCast(this.props.Document.brushingDocs);
                             const proto = this.props.Document.proto;
                             if (proto) {
                                 this.HistoOp.BrushLinks.splice(0, this.HistoOp.BrushLinks.length, ...brushingDocs.map((brush, i) => {
                                     brush.backgroundColor = StyleConstants.BRUSH_COLORS[i % StyleConstants.BRUSH_COLORS.length];
-                                    let brushed = Cast(brush.brushingDocs, listSpec(Doc), []).filter(d => d).map(d => d as Doc);
+                                    let brushed = DocListCast(brush.brushingDocs);
                                     return { l: brush, b: brushed[0][Id] === proto[Id] ? brushed[1] : brushed[0] };
                                 }));
                             }