diff --git a/kernel/arch/x86_64/Thread.S b/kernel/arch/x86_64/Thread.S
index 6f47cfd958..6ca2e20217 100644
--- a/kernel/arch/x86_64/Thread.S
+++ b/kernel/arch/x86_64/Thread.S
@@ -33,4 +33,5 @@ thread_jump_userspace:
 	pushfq
 	pushq $0x1B
 	pushq %rsi
+	movq $0, %rdi
 	iretq