diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
index 76aaae7261..e457949952 100755
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -894,7 +894,7 @@ NOOPT_*_*_OBJCOPY_ADDDEBUGFLAG     = --add-gnu-debuglink="$(DEBUG_DIR)/$(MODULE_
 *_*_*_DTCPP_PATH                   = DEF(DTCPP_BIN)
 *_*_*_DTC_PATH                     = DEF(DTC_BIN)
 
-DEFINE GCC_ALL_CC_FLAGS            = -g -Os -fshort-wchar -fno-builtin -fno-strict-aliasing -Wall -Werror -Wno-array-bounds -include AutoGen.h -fno-common
+DEFINE GCC_ALL_CC_FLAGS            = -g -Os -fshort-wchar -fno-builtin -fno-strict-aliasing -Wall -Wno-array-bounds -include AutoGen.h -fno-common
 DEFINE GCC_ARM_CC_FLAGS            = DEF(GCC_ALL_CC_FLAGS) -mlittle-endian -mabi=aapcs -fno-short-enums -funsigned-char -ffunction-sections -fdata-sections -fomit-frame-pointer -Wno-address -mthumb -fno-pic -fno-pie
 DEFINE GCC_LOONGARCH64_CC_FLAGS    = DEF(GCC_ALL_CC_FLAGS) -mabi=lp64d -fno-asynchronous-unwind-tables -Wno-address -fno-short-enums -fsigned-char -ffunction-sections -fdata-sections
 DEFINE GCC_ARM_CC_XIPFLAGS         = -mno-unaligned-access
@@ -1003,7 +1003,7 @@ DEFINE GCC5_ARM_ASLDLINK_FLAGS       = DEF(GCC49_ARM_ASLDLINK_FLAGS)
 DEFINE GCC5_AARCH64_ASLDLINK_FLAGS   = DEF(GCC49_AARCH64_ASLDLINK_FLAGS)
 DEFINE GCC5_ASLCC_FLAGS              = DEF(GCC49_ASLCC_FLAGS) -fno-lto
 
-DEFINE GCC5_RISCV_ALL_CC_FLAGS                    = -g -fshort-wchar -fno-strict-aliasing -Wall -Werror -Wno-array-bounds -ffunction-sections -fdata-sections -include AutoGen.h -fno-common -DSTRING_ARRAY_NAME=$(BASE_NAME)Strings -msmall-data-limit=0
+DEFINE GCC5_RISCV_ALL_CC_FLAGS                    = -g -fshort-wchar -fno-strict-aliasing -Wall -Wno-array-bounds -ffunction-sections -fdata-sections -include AutoGen.h -fno-common -DSTRING_ARRAY_NAME=$(BASE_NAME)Strings -msmall-data-limit=0
 DEFINE GCC5_RISCV_ALL_DLINK_COMMON                = -nostdlib -Wl,-n,-q,--gc-sections -z common-page-size=0x40
 DEFINE GCC5_RISCV_ALL_DLINK_FLAGS                 = DEF(GCC5_RISCV_ALL_DLINK_COMMON) -Wl,--entry,$(IMAGE_ENTRY_POINT) -u $(IMAGE_ENTRY_POINT) -Wl,-Map,$(DEST_DIR_DEBUG)/$(BASE_NAME).map
 DEFINE GCC5_RISCV_ALL_DLINK2_FLAGS                = -Wl,--defsym=PECOFF_HEADER_SIZE=0x220,--script=$(EDK_TOOLS_PATH)/Scripts/GccBase.lds
@@ -1019,7 +1019,7 @@ DEFINE GCC5_RISCV64_DLINK_FLAGS            = DEF(GCC5_RISCV_ALL_DLINK_FLAGS) -Wl
 DEFINE GCC5_RISCV64_DLINK2_FLAGS           = DEF(GCC5_RISCV_ALL_DLINK2_FLAGS)
 DEFINE GCC5_RISCV64_ASM_FLAGS              = DEF(GCC5_RISCV_ALL_ASM_FLAGS) -march=DEF(GCC5_RISCV64_ARCH) -mcmodel=medany -mabi=lp64
 
-DEFINE GCC5_LOONGARCH64_CC_FLAGS           = DEF(GCC_LOONGARCH64_CC_FLAGS) -march=loongarch64 -mno-memcpy -Werror -Wno-maybe-uninitialized -Wno-stringop-overflow -Wno-pointer-to-int-cast -no-pie -fno-stack-protector -mno-explicit-relocs
+DEFINE GCC5_LOONGARCH64_CC_FLAGS           = DEF(GCC_LOONGARCH64_CC_FLAGS) -march=loongarch64 -mno-memcpy -Wno-maybe-uninitialized -Wno-stringop-overflow -Wno-pointer-to-int-cast -no-pie -fno-stack-protector -mno-explicit-relocs
 DEFINE GCC5_LOONGARCH64_DLINK_FLAGS        = DEF(GCC_LOONGARCH64_DLINK_FLAGS)
 DEFINE GCC5_LOONGARCH64_DLINK2_FLAGS       = DEF(GCC_DLINK2_FLAGS_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0x228
 DEFINE GCC5_LOONGARCH64_ASLDLINK_FLAGS     = DEF(GCC_LOONGARCH64_ASLDLINK_FLAGS) DEF(GCC5_LOONGARCH64_DLINK2_FLAGS)
diff --git a/BaseTools/Source/C/Makefiles/header.makefile b/BaseTools/Source/C/Makefiles/header.makefile
index d369908a09..1bf4caaa53 100644
--- a/BaseTools/Source/C/Makefiles/header.makefile
+++ b/BaseTools/Source/C/Makefiles/header.makefile
@@ -92,17 +92,17 @@ BUILD_OPTFLAGS = -O2 $(EXTRA_OPTFLAGS)
 
 ifeq ($(DARWIN),Darwin)
 # assume clang or clang compatible flags on OS X
-CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror \
+CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -Wall \
 -Wno-deprecated-declarations -Wno-self-assign -Wno-unused-result -nostdlib -g
 else
 ifneq ($(CLANG),)
 CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -fwrapv \
--fno-delete-null-pointer-checks -Wall -Werror \
+-fno-delete-null-pointer-checks -Wall \
 -Wno-deprecated-declarations -Wno-self-assign \
 -Wno-unused-result -nostdlib -g
 else
 CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -fwrapv \
--fno-delete-null-pointer-checks -Wall -Werror \
+-fno-delete-null-pointer-checks -Wall \
 -Wno-deprecated-declarations -Wno-stringop-truncation -Wno-restrict \
 -Wno-unused-result -nostdlib -g
 endif