diff --git a/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c b/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
index 7b11f49d0d..93622733a5 100644
--- a/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
+++ b/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
@@ -4809,6 +4809,9 @@ ExplainPcieLinkCap (
     case 5:
       MaxLinkSpeed = L"32.0 GT/s";
       break;
+    case 6:
+      MaxLinkSpeed = L"64.0 GT/s";
+      break;
     default:
       MaxLinkSpeed = L"Reserved";
       break;
@@ -5015,6 +5018,9 @@ ExplainPcieLinkStatus (
     case 5:
       CurLinkSpeed = L"32.0 GT/s";
       break;
+    case 6:
+      CurLinkSpeed = L"64.0 GT/s";
+      break;
     default:
       CurLinkSpeed = L"Reserved";
       break;