diff --git a/libc/bionic/ptrace.c b/libc/bionic/ptrace.c
index 863fac7..0bb1acd 100644
--- a/libc/bionic/ptrace.c
+++ b/libc/bionic/ptrace.c
@@ -57,7 +57,12 @@
 /*
  * Hook for gdb to get notified when a thread is created
  */
-void _thread_created_hook(pid_t thread_id) __attribute__((noinline));
-void _thread_created_hook(pid_t thread_id)
+#ifdef __i386__
+#define ATTRIBUTES __attribute__((noinline)) __attribute__((fastcall))
+#else
+#define ATTRIBUTES __attribute__((noinline))
+#endif
+
+void ATTRIBUTES _thread_created_hook(pid_t thread_id)
 {
 }