diff --git a/Makefile.clang b/Makefile.clang
index 1439398..0d56e99 100644
--- a/Makefile.clang
+++ b/Makefile.clang
@@ -35,7 +35,7 @@ all: lualib/liblua.a build/lua-loader build/spawnexample
 
 deps/musl/release/:
 	cd deps/musl/src/stdio
-	cd deps/musl/ && CLANG=$(CC) ./ckb/build.sh
+	cd deps/musl/ && CLANG=$(CC) DISABLE_STD_FILE=true ./ckb/build.sh
 
 deps/ckb-libcxx-builder/release/:
 	cd deps/ckb-libcxx-builder && mkdir -p release && LLVM_VERSION= CLANG=$(CC) ./build.sh
diff --git a/deps/musl b/deps/musl
index a0d71f6..867b899 160000
--- a/deps/musl
+++ b/deps/musl
@@ -1 +1 @@
-Subproject commit a0d71f624b116140eaa41940759c7a2b720ed80f
+Subproject commit 867b8995afb9e5ff15253b579af09475235dcf72
diff --git a/lualib/c-stdlib/src/mocked_stdio_impl.h b/lualib/c-stdlib/src/mocked_stdio_impl.h
index f863579..45d6b4a 100644
--- a/lualib/c-stdlib/src/mocked_stdio_impl.h
+++ b/lualib/c-stdlib/src/mocked_stdio_impl.h
@@ -3,10 +3,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-FILE *stdin;
-FILE *stdout;
-FILE *stderr;
-
 int ckb_exit(signed char code);
 
 static int s_local_access_enabled = 0;