diff --git a/libc/bionic/libc_init_common.h b/libc/bionic/libc_init_common.h
index 126f002..9e15811 100644
--- a/libc/bionic/libc_init_common.h
+++ b/libc/bionic/libc_init_common.h
@@ -44,10 +44,12 @@
   size_t fini_array_count;
 } structors_array_t;
 
-__BEGIN_DECLS
-
+// The main function must not be declared with a linkage-specification
+// ('extern "C"' or 'extern "C++"'), so declare it before __BEGIN_DECLS.
 extern int main(int argc, char** argv, char** env);
 
+__BEGIN_DECLS
+
 __noreturn void __libc_init(void* raw_args,
                             void (*onexit)(void),
                             int (*slingshot)(int, char**, char**),