diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
index 87f035a56e64..0f110fbb4a16 100755
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -2096,7 +2096,7 @@ NOOPT_CLANGDWARF_X64_DLINK2_FLAGS     = DEF(CLANGDWARF_X64_DLINK2_FLAGS) -O0 -fu
 # CLANGDWARF ARM definitions
 ##################
 DEFINE CLANGDWARF_ARM_TARGET        = -target arm-linux-gnueabi
-DEFINE CLANGDWARF_ARM_CC_FLAGS      = DEF(GCC_ARM_CC_FLAGS) DEF(CLANGDWARF_ARM_TARGET) DEF(CLANGDWARF_WARNING_OVERRIDES) -mno-movt
+DEFINE CLANGDWARF_ARM_CC_FLAGS      = DEF(GCC_ARM_CC_FLAGS) DEF(CLANGDWARF_ARM_TARGET) DEF(CLANGDWARF_WARNING_OVERRIDES) -mno-movt -fno-stack-protector
 DEFINE CLANGDWARF_ARM_DLINK_FLAGS   = DEF(CLANGDWARF_ARM_TARGET) DEF(GCC_ARM_DLINK_FLAGS)
 
 *_CLANGDWARF_ARM_PP_FLAGS           = DEF(GCC_PP_FLAGS)