diff --git a/MdeModulePkg/Universal/DebugSupportDxe/X64/AsmFuncs.S b/MdeModulePkg/Universal/DebugSupportDxe/X64/AsmFuncs.S
index 9783ec6b80..7f0919ee1b 100644
--- a/MdeModulePkg/Universal/DebugSupportDxe/X64/AsmFuncs.S
+++ b/MdeModulePkg/Universal/DebugSupportDxe/X64/AsmFuncs.S
@@ -280,7 +280,7 @@ ExtraPushDone:
 
                 mov     %ds, %rax
                 pushq   %rax
-                movw    %es, %rax
+                mov     %es, %rax
                 pushq   %rax
                 mov     %fs, %rax
                 pushq   %rax