diff --git a/src/node.cc b/src/node.cc
index d71303570b1..5ddbf99150d 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -327,7 +327,8 @@ static struct {
   }
 
   void StopTracingAgent() {
-    tracing_agent_->Stop();
+    if (tracing_agent_)
+      tracing_agent_->Stop();
   }
 
   tracing::Agent* GetTracingAgent() const {