diff --git a/libc/arch-x86_64/bionic/vfork.S b/libc/arch-x86_64/bionic/vfork.S
index e32b517..86c5db2 100644
--- a/libc/arch-x86_64/bionic/vfork.S
+++ b/libc/arch-x86_64/bionic/vfork.S
@@ -26,8 +26,8 @@
  * SUCH DAMAGE.
  */
 
+#include <platform/bionic/tls_defines.h>
 #include <private/bionic_asm.h>
-#include <private/bionic_asm_tls.h>
 
 // This custom code preserves the return address across the system call.