diff --git a/libc/arch-mips/string/mips_strlen.c b/libc/arch-mips/string/mips_strlen.c
index 45fc4b4..f1465f2 100644
--- a/libc/arch-mips/string/mips_strlen.c
+++ b/libc/arch-mips/string/mips_strlen.c
@@ -49,7 +49,7 @@
 #endif
 
 size_t
-strlen (const char *_a)
+strlen (const char *_a) __overloadable
 {
   int cnt = 0;
   unsigned x;
diff --git a/libc/arch-mips/string/strlen.c b/libc/arch-mips/string/strlen.c
index 7e0e27b..488e3c8 100644
--- a/libc/arch-mips/string/strlen.c
+++ b/libc/arch-mips/string/strlen.c
@@ -32,7 +32,7 @@
 #include <string.h>
 
 size_t
-strlen(const char *str)
+strlen(const char *str) __overloadable
 {
 	const char *s;