diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 3b70f20f21f9e2a54276b1249940ad01bf397a91..6a93b93f91f11fcd317441d57439232161d6c02a 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -66,7 +66,7 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 		case 0x26: case 0x2e:
 		case 0x36: case 0x3e:
 		case 0x64: case 0x65:
-		case 0xf2: case 0xf3:
+		case 0xf0: case 0xf2: case 0xf3:
 			continue;
 
 		case 0x40 ... 0x4f: