From 5640232085a9805139c1a8aabab9961d4f3649a8 Mon Sep 17 00:00:00 2001
From: gabrielmer <101006718+gabrielmer@users.noreply.github.com>
Date: Thu, 24 Jul 2025 16:33:49 +0200
Subject: [PATCH] fix: only stop health monitor components if not nil (#3526)

---
 waku/node/health_monitor/node_health_monitor.nim | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/waku/node/health_monitor/node_health_monitor.nim b/waku/node/health_monitor/node_health_monitor.nim
index fa31c0529..09f37b5e9 100644
--- a/waku/node/health_monitor/node_health_monitor.nim
+++ b/waku/node/health_monitor/node_health_monitor.nim
@@ -408,8 +408,11 @@ proc startHealthMonitor*(hm: NodeHealthMonitor): Result[void, string] =
   return ok()
 
 proc stopHealthMonitor*(hm: NodeHealthMonitor) {.async.} =
-  await hm.onlineMonitor.stopOnlineMonitor()
-  await hm.keepAliveFut.cancelAndWait()
+  if not hm.onlineMonitor.isNil():
+    await hm.onlineMonitor.stopOnlineMonitor()
+
+  if not hm.keepAliveFut.isNil():
+    await hm.keepAliveFut.cancelAndWait()
 
 proc new*(
     T: type NodeHealthMonitor,