diff --git a/libc/arch-arm64/dynamic_function_dispatch.cpp b/libc/arch-arm64/dynamic_function_dispatch.cpp
index b9f657b..450138c 100644
--- a/libc/arch-arm64/dynamic_function_dispatch.cpp
+++ b/libc/arch-arm64/dynamic_function_dispatch.cpp
@@ -65,6 +65,16 @@
     }
 }
 
+typedef int memrchr_func(const void*, int, size_t);
+DEFINE_IFUNC_FOR(memrchr) {
+    RETURN_FUNC(memrchr_func, __memrchr_aarch64);
+}
+
+typedef int memset_func(void*, int, size_t);
+DEFINE_IFUNC_FOR(memset) {
+    RETURN_FUNC(memset_func, __memset_aarch64);
+}
+
 typedef char* stpcpy_func(char*, const char*, size_t);
 DEFINE_IFUNC_FOR(stpcpy) {
     // TODO: enable the SVE version.
diff --git a/libc/arch-arm64/static_function_dispatch.S b/libc/arch-arm64/static_function_dispatch.S
index c7557f8..18c3783 100644
--- a/libc/arch-arm64/static_function_dispatch.S
+++ b/libc/arch-arm64/static_function_dispatch.S
@@ -37,6 +37,8 @@
 FUNCTION_DELEGATE(memcmp, __memcmp_aarch64)
 FUNCTION_DELEGATE(memcpy, __memcpy_aarch64)
 FUNCTION_DELEGATE(memmove, __memmove_aarch64)
+FUNCTION_DELEGATE(memrchr, __memrchr_aarch64)
+FUNCTION_DELEGATE(memset, __memset_aarch64)
 FUNCTION_DELEGATE(stpcpy, __stpcpy_aarch64)
 FUNCTION_DELEGATE(strchr, __strchr_aarch64_mte)
 FUNCTION_DELEGATE(strchrnul, __strchrnul_aarch64_mte)