diff --git a/ShellPkg/ShellPkg.dsc b/ShellPkg/ShellPkg.dsc
index 0917a5ca62..c601b31708 100644
--- a/ShellPkg/ShellPkg.dsc
+++ b/ShellPkg/ShellPkg.dsc
@@ -71,8 +71,6 @@
       gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask|0xFF
       gEfiShellPkgTokenSpaceGuid.PcdShellLibAutoInitialize|FALSE
       gEfiMdePkgTokenSpaceGuid.PcdUefiLibMaxPrintBufferSize|16000
-    <BuildOptions>
-      *_*_*_CC_FLAGS = /Od
   }