diff --git a/src/runtime/cgo_musl_linux.go b/src/runtime/cgo_musl_linux.go
deleted file mode 100644
index 470dfd64173..00000000000
--- a/src/runtime/cgo_musl_linux.go
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2024 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build linux
-
-package runtime
-
-import "unsafe"
-
-//go:linkname _cgo_is_musl _cgo_is_musl
-var _cgo_is_musl unsafe.Pointer
diff --git a/src/runtime/os_linux.go b/src/runtime/os_linux.go
index b6ad4a49504..3995db43e7f 100644
--- a/src/runtime/os_linux.go
+++ b/src/runtime/os_linux.go
@@ -368,6 +368,9 @@ func goenvs() {
 	goenvs_unix()
 }
 
+//go:linkname _cgo_is_musl _cgo_is_musl
+var _cgo_is_musl unsafe.Pointer
+
 // Called to do synchronous initialization of Go code built with
 // -buildmode=c-archive or -buildmode=c-shared.
 // None of the Go runtime is initialized.