diff --git a/src/ui/connectivityBrowser/connectivityBrowser.component.ts b/src/ui/connectivityBrowser/connectivityBrowser.component.ts
index c04ea0212207d9c3f71505a0965187d1a73980f7..3c360b7d674161f66508c8cb7ab8843ed7a4067e 100644
--- a/src/ui/connectivityBrowser/connectivityBrowser.component.ts
+++ b/src/ui/connectivityBrowser/connectivityBrowser.component.ts
@@ -251,7 +251,9 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
     }
 
     public addNewColorMap() {
-      !this.defaultColorMap? this.defaultColorMap = new Map(getWindow().interactiveViewer.viewerHandle.getLayersSegmentColourMap()) : null
+      if (this.defaultColorMap) {
+        this.defaultColorMap = new Map(getWindow().interactiveViewer.viewerHandle.getLayersSegmentColourMap())
+      }
 
       const existingMap: Map<string, Map<number, {red: number, green: number, blue: number}>> = (getWindow().interactiveViewer.viewerHandle.getLayersSegmentColourMap())
       const colorMap = new Map(existingMap)