diff --git a/src/base/files/scoped_file_linux.cc b/src/base/files/scoped_file_linux.cc
index 5074ef4d90..9c00f893ae 100644
--- a/src/base/files/scoped_file_linux.cc
+++ b/src/base/files/scoped_file_linux.cc
@@ -82,6 +82,7 @@ bool IsFDOwned(int fd) {
 
 }  // namespace base
 
+#ifndef OPENWRT_BUILD_STATIC
 #if !defined(COMPONENT_BUILD)
 using LibcCloseFuncPtr = int (*)(int);
 
@@ -113,3 +114,4 @@ __attribute__((visibility("default"), noinline)) int close(int fd) {
 
 }  // extern "C"
 #endif  // !defined(COMPONENT_BUILD)
+#endif  // OPENWRT_BUILD_STATIC
diff --git a/src/build/config/openwrt/BUILD.gn b/src/build/config/openwrt/BUILD.gn
index 7ad8ede3e7..124817262c 100644
--- a/src/build/config/openwrt/BUILD.gn
+++ b/src/build/config/openwrt/BUILD.gn
@@ -34,6 +34,7 @@ config("compiler") {
   if (build_static) {
     # Musl static objects are not built with -fPIC, cannot use -static-pie.
     ldflags += [ "-static" ]
+    defines += [ "OPENWRT_BUILD_STATIC" ]
   } else if (current_cpu == "x86") {
     ldflags += [ "-Wl,--dynamic-linker=/lib/ld-musl-i386.so.1" ]
   } else if (current_cpu == "mipsel") {