diff --git a/gn/toolchain/BUILD.gn b/gn/toolchain/BUILD.gn
index 4d4abc952f..5800f30bd9 100644
--- a/gn/toolchain/BUILD.gn
+++ b/gn/toolchain/BUILD.gn
@@ -96,6 +96,7 @@ template("msvc_toolchain") {
       # ARM64 compiler is incomplete - it relies on DLLs located in the host toolchain directory.
       env_setup = "$shell set \"PATH=%PATH%;$win_vc\\Tools\\MSVC\\$win_toolchain_version\\bin\\HostX64\\x64\" && "
     }
+    env_setup = "" # overwrite

     cl_m32_flag = ""