diff --git a/libc/arch-arm64/dynamic_function_dispatch.cpp b/libc/arch-arm64/dynamic_function_dispatch.cpp
index 5c6d4ed..0fd331f 100644
--- a/libc/arch-arm64/dynamic_function_dispatch.cpp
+++ b/libc/arch-arm64/dynamic_function_dispatch.cpp
@@ -45,7 +45,7 @@
 typedef void* memchr_func(const void*, int, size_t);
 DEFINE_IFUNC_FOR(memchr) {
     if (supports_mte(arg->_hwcap2)) {
-        RETURN_FUNC(memchr_func, memchr_mte);
+        RETURN_FUNC(memchr_func, __memchr_aarch64_mte);
     } else {
         RETURN_FUNC(memchr_func, __memchr_aarch64);
     }
@@ -54,7 +54,7 @@
 typedef int stpcpy_func(char*, const char*);
 DEFINE_IFUNC_FOR(stpcpy) {
     if (supports_mte(arg->_hwcap2)) {
-        RETURN_FUNC(stpcpy_func, stpcpy_mte);
+        RETURN_FUNC(stpcpy_func, __stpcpy_aarch64_mte);
     } else {
         RETURN_FUNC(stpcpy_func, __stpcpy_aarch64);
     }
@@ -72,7 +72,7 @@
 typedef char* strchrnul_func(const char*, int);
 DEFINE_IFUNC_FOR(strchrnul) {
     if (supports_mte(arg->_hwcap2)) {
-        RETURN_FUNC(strchrnul_func, strchrnul_mte);
+        RETURN_FUNC(strchrnul_func, __strchrnul_aarch64_mte);
     } else {
         RETURN_FUNC(strchrnul_func, __strchrnul_aarch64);
     }
@@ -81,7 +81,7 @@
 typedef int strcmp_func(const char*, const char*);
 DEFINE_IFUNC_FOR(strcmp) {
     if (supports_mte(arg->_hwcap2)) {
-        RETURN_FUNC(strcmp_func, strcmp_mte);
+        RETURN_FUNC(strcmp_func, __strcmp_aarch64_mte);
     } else {
         RETURN_FUNC(strcmp_func, __strcmp_aarch64);
     }
@@ -90,7 +90,7 @@
 typedef int strcpy_func(char*, const char*);
 DEFINE_IFUNC_FOR(strcpy) {
     if (supports_mte(arg->_hwcap2)) {
-        RETURN_FUNC(strcpy_func, strcpy_mte);
+        RETURN_FUNC(strcpy_func, __strcpy_aarch64_mte);
     } else {
         RETURN_FUNC(strcpy_func, __strcpy_aarch64);
     }
@@ -108,25 +108,16 @@
 typedef int strncmp_func(const char*, const char*, int);
 DEFINE_IFUNC_FOR(strncmp) {
     if (supports_mte(arg->_hwcap2)) {
-        RETURN_FUNC(strncmp_func, strncmp_mte);
+        RETURN_FUNC(strncmp_func, __strncmp_aarch64_mte);
     } else {
         RETURN_FUNC(strncmp_func, __strncmp_aarch64);
     }
 }
 
-typedef size_t strnlen_func(const char*, int);
-DEFINE_IFUNC_FOR(strnlen) {
-    if (supports_mte(arg->_hwcap2)) {
-        RETURN_FUNC(strnlen_func, strnlen_mte);
-    } else {
-        RETURN_FUNC(strnlen_func, __strnlen_aarch64);
-    }
-}
-
 typedef char* strrchr_func(const char*, int);
 DEFINE_IFUNC_FOR(strrchr) {
     if (supports_mte(arg->_hwcap2)) {
-        RETURN_FUNC(strrchr_func, strrchr_mte);
+        RETURN_FUNC(strrchr_func, __strrchr_aarch64_mte);
     } else {
         RETURN_FUNC(strrchr_func, __strrchr_aarch64);
     }