diff --git a/src/app/components/treeselect/treeselect.ts b/src/app/components/treeselect/treeselect.ts
index cca2a6fc732..f1d243e3e94 100755
--- a/src/app/components/treeselect/treeselect.ts
+++ b/src/app/components/treeselect/treeselect.ts
@@ -656,6 +656,9 @@ export class TreeSelect implements AfterContentInit {
             originalEvent: event,
             filteredValue: this.treeViewChild?.filteredNodes
         });
+           setTimeout(() => {
+            this.overlayViewChild.alignOverlay();
+        });
     }
 
     onArrowDown(event: KeyboardEvent) {