diff --git a/shell/browser/api/electron_api_web_frame_main.cc b/shell/browser/api/electron_api_web_frame_main.cc
index c81a2cb128f9..741bc2328710 100644
--- a/shell/browser/api/electron_api_web_frame_main.cc
+++ b/shell/browser/api/electron_api_web_frame_main.cc
@@ -193,8 +193,8 @@ void WebFrameMain::UpdateRenderFrameHost(content::RenderFrameHost* rfh) {
   // Ensure that RFH being swapped in doesn't already exist as its own
   // WebFrameMain instance.
   frame_token_ = rfh->GetGlobalFrameToken();
-  DCHECK(!GetFrameTokenMap().contains(frame_token_));
-  GetFrameTokenMap().emplace(frame_token_, this);
+  const auto [_, inserted] = GetFrameTokenMap().emplace(frame_token_, this);
+  DCHECK(inserted);
 
   render_frame_disposed_ = false;
   TeardownMojoConnection();