diff --git a/EdkModulePkg/Library/EdkDxeDebugLibReportStatusCode/DebugLib.c b/EdkModulePkg/Library/EdkDxeDebugLibReportStatusCode/DebugLib.c
index 482e12e79e..6bc2c20dd9 100644
--- a/EdkModulePkg/Library/EdkDxeDebugLibReportStatusCode/DebugLib.c
+++ b/EdkModulePkg/Library/EdkDxeDebugLibReportStatusCode/DebugLib.c
@@ -123,7 +123,7 @@ DebugPrint (
   //
   VA_START (Marker, Format);
   for (Index = 0, ArgumentPointer = (UINT64 *)(DebugInfo + 1); Index < 12; Index++, ArgumentPointer++) {
-    *ArgumentPointer = VA_ARG (Marker, UINT64);
+    WriteUnaligned64(ArgumentPointer, VA_ARG (Marker, UINT64));
   }
   VA_END (Marker);
   AsciiStrCpy ((CHAR8 *)ArgumentPointer, Format);