diff --git a/compiler-rt/lib/builtins/int_lib.h b/compiler-rt/lib/builtins/int_lib.h
--- a/compiler-rt/lib/builtins/int_lib.h
+++ b/compiler-rt/lib/builtins/int_lib.h
@@ -54,6 +54,7 @@
 #elif defined(__APPLE__)
 #define COMPILER_RT_ALIAS(name, aliasname) \
   __asm__(".globl " SYMBOL_NAME(aliasname)); \
+  __asm__(".private_extern " SYMBOL_NAME(aliasname)); \
   __asm__(SYMBOL_NAME(aliasname) " = " SYMBOL_NAME(name)); \
   COMPILER_RT_ABI __typeof(name) aliasname;
 #elif defined(_WIN32)