diff --git a/BaseTools/Source/C/Makefiles/header.makefile b/BaseTools/Source/C/Makefiles/header.makefile
index 821d114e78..063982b82f 100644
--- a/BaseTools/Source/C/Makefiles/header.makefile
+++ b/BaseTools/Source/C/Makefiles/header.makefile
@@ -52,7 +52,7 @@ else
 BUILD_CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror -Wno-deprecated-declarations -Wno-unused-result -nostdlib -c -g
 endif
 BUILD_LFLAGS =
-BUILD_CXXFLAGS =
+BUILD_CXXFLAGS = -Wno-unused-result
 
 ifeq ($(ARCH), IA32)
 #