diff --git a/system/lib/libc/musl/src/conf/confstr.c b/system/lib/libc/musl/src/conf/confstr.c
index 9c12d365babf2..3a89c6e5ac9d5 100644
--- a/system/lib/libc/musl/src/conf/confstr.c
+++ b/system/lib/libc/musl/src/conf/confstr.c
@@ -2,6 +2,7 @@
 #include <stdio.h>
 #include <errno.h>
 
+__attribute__((weak))
 size_t confstr(int name, char *buf, size_t len)
 {
 	const char *s = "";