diff --git a/libc/arch-riscv64/bionic/vfork.S b/libc/arch-riscv64/bionic/vfork.S
index 0eff9e9..29ab405 100644
--- a/libc/arch-riscv64/bionic/vfork.S
+++ b/libc/arch-riscv64/bionic/vfork.S
@@ -62,5 +62,5 @@
 
 .L_failure:
   neg     a0, a0
-  j       __set_errno_internal
+  tail    __set_errno_internal
 END(vfork)