diff --git a/libc/bionic/libc_init_common.cpp b/libc/bionic/libc_init_common.cpp
index 1f099cf..b6a9ed2 100644
--- a/libc/bionic/libc_init_common.cpp
+++ b/libc/bionic/libc_init_common.cpp
@@ -101,13 +101,15 @@
 
   __libc_add_main_thread();
 
-  // Register atfork handlers to take and release the arc4random lock.
-  pthread_atfork(arc4random_fork_handler, _thread_arc4_unlock, _thread_arc4_unlock);
-
   __system_properties_init(); // Requires 'environ'.
   __libc_init_fdsan(); // Requires system properties (for debug.fdsan).
 }
 
+void __libc_init_fork_handler() {
+  // Register atfork handlers to take and release the arc4random lock.
+  pthread_atfork(arc4random_fork_handler, _thread_arc4_unlock, _thread_arc4_unlock);
+}
+
 __noreturn static void __early_abort(int line) {
   // We can't write to stdout or stderr because we're aborting before we've checked that
   // it's safe for us to use those file descriptors. We probably can't strace either, so