diff --git a/projects/hslayers/components/print/print-legend.service.ts b/projects/hslayers/components/print/print-legend.service.ts
index 887d403c55..6b9138b9a1 100644
--- a/projects/hslayers/components/print/print-legend.service.ts
+++ b/projects/hslayers/components/print/print-legend.service.ts
@@ -55,7 +55,7 @@ export class HsPrintLegendService extends PrintLegendParams {
           subscriber.complete();
         };
         img.onerror = function (event) {
-          subscriber.next();
+          subscriber.next(null);
           subscriber.complete();
         };
         if (