diff --git a/atom/browser/api/atom_api_web_contents.cc b/atom/browser/api/atom_api_web_contents.cc
index 87411ec7f73c..50c3fc52c92e 100644
--- a/atom/browser/api/atom_api_web_contents.cc
+++ b/atom/browser/api/atom_api_web_contents.cc
@@ -7,16 +7,6 @@
 #include <set>
 #include <string>
 
-// We have problems with redefinition of ssize_t between node.h and
-// port_chromium.h, and the latter was introduced by leveldb.mojom.h.
-// The best solution is to not include content/browser/frame_host/ headers
-// and node.h in the same file, but for now I'm just working around the
-// problem.
-#if defined(OS_WIN)
-#define COMPONENTS_SERVICES_LEVELDB_PUBLIC_INTERFACES_LEVELDB_MOJOM_H_
-#define COMPONENTS_LEVELDB_PUBLIC_INTERFACES_LEVELDB_MOJOM_H_
-#endif
-
 #include "atom/browser/api/atom_api_browser_window.h"
 #include "atom/browser/api/atom_api_debugger.h"
 #include "atom/browser/api/atom_api_session.h"