diff --git a/Nt32Pkg/Library/PeiNt32PeCoffLib/PeiNt32PeCoffLib.c b/Nt32Pkg/Library/PeiNt32PeCoffLib/PeiNt32PeCoffLib.c
index a1a2580a5b..80796020f2 100644
--- a/Nt32Pkg/Library/PeiNt32PeCoffLib/PeiNt32PeCoffLib.c
+++ b/Nt32Pkg/Library/PeiNt32PeCoffLib/PeiNt32PeCoffLib.c
@@ -64,7 +64,7 @@ PeiNt32PeCoffLibConstructor (
     // GuidHob is not ready, try to locate PeCoffLoader guid structure.
     //
     Status = (*PeiServices)->LocatePpi (
-                              (const EFI_PEI_SERVICES **)PeiServices,
+                              (CONST EFI_PEI_SERVICES **)PeiServices,
                               &gEfiPeiPeCoffLoaderGuid,
                               0,
                               NULL,
diff --git a/Nt32Pkg/Sec/SecMain.c b/Nt32Pkg/Sec/SecMain.c
index 345f1915e6..56753fd421 100644
--- a/Nt32Pkg/Sec/SecMain.c
+++ b/Nt32Pkg/Sec/SecMain.c
@@ -913,7 +913,7 @@ Returns:
 
 UINTN
 CountSeperatorsInString (
-  IN  const CHAR16   *String,
+  IN  CONST CHAR16   *String,
   IN  CHAR16         Seperator
   )
 /*++
diff --git a/Nt32Pkg/Sec/SecMain.h b/Nt32Pkg/Sec/SecMain.h
index 618728da94..c71f287c7c 100644
--- a/Nt32Pkg/Sec/SecMain.h
+++ b/Nt32Pkg/Sec/SecMain.h
@@ -528,7 +528,7 @@ Returns:
 
 UINTN
 CountSeperatorsInString (
-  IN  const CHAR16   *String,
+  IN  CONST CHAR16   *String,
   IN  CHAR16   Seperator
   )
 /*++