diff --git a/Software/OperatingSystem/Virtualization/SoftVirtualization/Virtio.md b/Software/OperatingSystem/Virtualization/SoftVirtualization/Virtio.md
index b28a688..632af5e 100644
--- a/Software/OperatingSystem/Virtualization/SoftVirtualization/Virtio.md
+++ b/Software/OperatingSystem/Virtualization/SoftVirtualization/Virtio.md
@@ -127,7 +127,7 @@ Virtio PCI 配置空间如下：
     <td> 0x000 </td> <td colspan="2"> Vendor ID </td> <td colspan="2"> Device ID </td>
 </tr>
 <tr align="center">
-    <td> 0x008 </td> <td> REVID </td> <td> PROGIF </td> <td> Sub Class </td> <td> Class </td>
+    <td> 0x008 </td> <td> REVID </td> <td> PROGIF </td> <td> Sub Class ID </td> <td> Class ID </td>
 </tr>
 <tr align="center">
     <td> 0x02C </td> <td colspan="2"> Sub Vendor ID 0 </td> <td colspan="2"> Sub Device ID 0 </td>