diff --git a/src/app/components/pb-schema/pb-schema.component.ts b/src/app/components/pb-schema/pb-schema.component.ts
index c0a9deb2f3293623388a4e447009e329108a9e39..026f5e3ee862233e712ca42200a69f90e73b69dd 100644
--- a/src/app/components/pb-schema/pb-schema.component.ts
+++ b/src/app/components/pb-schema/pb-schema.component.ts
@@ -397,7 +397,7 @@ export class PbSchemaComponent implements AfterViewInit, AfterContentInit, OnIni
      */
     private selectNodeOnSchema(element: PbBassin | PbCloison) {
         this.nativeElement.querySelectorAll("g.node").forEach(item => {
-            if (item.id === element.uid) {
+            if (element !== undefined && item.id === element.uid) {
                 this.selectNode(item);
             }
         });