diff --git a/examples/subscriber.nim b/examples/subscriber.nim
index b878a008b..1de1a7ef5 100644
--- a/examples/subscriber.nim
+++ b/examples/subscriber.nim
@@ -1,5 +1,5 @@
 import
-  std/[tables, sequtils],
+  std/[tables, sequtils, option],
   stew/byteutils,
   stew/shims/net,
   chronicles,