diff --git a/shell/browser/api/electron_api_net_log.cc b/shell/browser/api/electron_api_net_log.cc
index 45c21384c15..5447ac35634 100644
--- a/shell/browser/api/electron_api_net_log.cc
+++ b/shell/browser/api/electron_api_net_log.cc
@@ -166,6 +166,7 @@ void NetLog::StartNetLogAfterCreateFile(net::NetLogCaptureMode capture_mode,
     std::move(*pending_start_promise_)
         .RejectWithErrorMessage(
             base::File::ErrorToString(output_file.error_details()));
+    pending_start_promise_.reset();
     net_log_exporter_.reset();
     return;
   }
@@ -178,6 +179,7 @@ void NetLog::StartNetLogAfterCreateFile(net::NetLogCaptureMode capture_mode,
 void NetLog::NetLogStarted(int32_t error) {
   DCHECK(pending_start_promise_);
   ResolvePromiseWithNetError(std::move(*pending_start_promise_), error);
+  pending_start_promise_.reset();
 }
 
 void NetLog::OnConnectionError() {
@@ -185,6 +187,7 @@ void NetLog::OnConnectionError() {
   if (pending_start_promise_) {
     std::move(*pending_start_promise_)
         .RejectWithErrorMessage("Failed to start net log exporter");
+    pending_start_promise_.reset();
   }
 }