diff --git a/hypervisor/arch/x86/guest/instr_emul.c b/hypervisor/arch/x86/guest/instr_emul.c
index 6c0e22e4b..82d943e4a 100644
--- a/hypervisor/arch/x86/guest/instr_emul.c
+++ b/hypervisor/arch/x86/guest/instr_emul.c
@@ -1874,6 +1874,9 @@ static int decode_modrm(struct instr_emul_vie *vie, enum vm_cpu_mode cpu_mode)
 			}
 		}
 		break;
+	default:
+		/* VIE_MOD_DIRECT */
+		break;
 	}
 
 done: