diff --git a/projects/igniteui-angular/src/lib/grids/grid-base.directive.ts b/projects/igniteui-angular/src/lib/grids/grid-base.directive.ts
index fdd88ba2794..1072b6ecb41 100644
--- a/projects/igniteui-angular/src/lib/grids/grid-base.directive.ts
+++ b/projects/igniteui-angular/src/lib/grids/grid-base.directive.ts
@@ -4106,7 +4106,10 @@ export abstract class IgxGridBaseDirective implements GridType,
             return this._activeRowIndexes;
         } else {
             const activeRow = this.navigation.activeNode?.row;
-            const selectedCellIndexes = (this.selectionService.selection?.keys() as any)?.toArray();
+
+            const selectedCellIndexes = this.selectionService.selection
+                ? Array.from(this.selectionService.selection.keys())
+                : [];
             this._activeRowIndexes = [activeRow, ...selectedCellIndexes];
             return this._activeRowIndexes;
         }