diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c b/MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c
index 49c7ff8c5a..dc7ce78236 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c
@@ -833,7 +833,7 @@ ProcessHelpString (
   IN  UINTN   RowCount
   )
 {
-  CONST UINTN BlockWidth = (UINTN) gHelpBlockWidth - 1;
+  UINTN BlockWidth = (UINTN) gHelpBlockWidth - 1;
   UINTN AllocateSize;
   //
   // [PrevCurrIndex, CurrIndex) forms a range of a screen-line