diff --git a/libm/builtins.cpp b/libm/builtins.cpp
index 2ea6305..515b68a 100644
--- a/libm/builtins.cpp
+++ b/libm/builtins.cpp
@@ -57,4 +57,12 @@
 
 float roundf(float x) { return __builtin_roundf(x); }
 double round(double x) { return __builtin_round(x); }
+
+float nearbyintf(float x) { return __builtin_nearbyintf(x); }
+double nearbyint(double x) { return __builtin_nearbyint(x); }
+// msun s_nearbyint.c defines all floating-point version, so we need to
+// redefine the long double one here. For aarch64, clang/compiler-rt
+// soft-float routines does not use single/double floating-point operation,
+// so it should be safe to call rintl directly.
+long double nearbyintl(long double x) { return rintl(x); }
 #endif