diff --git a/src/system/kernel/arch/x86/arch_thread.c b/src/system/kernel/arch/x86/arch_thread.c
index acbf40fb5f..3e05c6d67a 100644
--- a/src/system/kernel/arch/x86/arch_thread.c
+++ b/src/system/kernel/arch/x86/arch_thread.c
@@ -508,8 +508,6 @@ arch_restore_signal_frame(void)
 
 	TRACE(("### arch_restore_signal_frame: exit\n"));
 
-	frame->orig_eax = -1;	/* disable syscall checks */
-
 	return (int64)frame->eax | ((int64)frame->edx << 32);
 }