diff --git a/benchmarks/coremark/tgc/core_portme.mak b/benchmarks/coremark/tgc/core_portme.mak
index 4d64e23..8dcac1c 100755
--- a/benchmarks/coremark/tgc/core_portme.mak
+++ b/benchmarks/coremark/tgc/core_portme.mak
@@ -16,7 +16,7 @@
 
 #File : core_portme.mak
 ISA?=imc
-RISCV_ARCH:=rv32$(ISA)
+RISCV_ARCH:=rv32$(ISA)_zicsr_zifencei
 RISCV_ABI:=ilp32
 TRIPLET?=riscv64-unknown-elf
 # Flag : OUTFLAG
diff --git a/benchmarks/dhrystone/Makefile b/benchmarks/dhrystone/Makefile
index 008ff5a..2c867e9 100644
--- a/benchmarks/dhrystone/Makefile
+++ b/benchmarks/dhrystone/Makefile
@@ -14,9 +14,9 @@ else
     RISCV_ABI:=ilp32
 endif
 # '-lgcc -lm' are needed to add softfloat routines
-CFLAGS  := -g -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -mcmodel=medlow -O3 -DHZ=32768 -DTIME -DNO_INIT -fno-inline -fno-builtin-printf -fno-common -Wno-implicit \
+CFLAGS  := -g -march=$(RISCV_ARCH)_zicsr_zifencei -mabi=$(RISCV_ABI) -mcmodel=medlow -O3 -DHZ=32768 -DTIME -DNO_INIT -fno-inline -fno-builtin-printf -fno-common -Wno-implicit \
  -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las
-LDFLAGS := -g -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -mcmodel=medlow -Wl,--wrap=scanf -Wl,--wrap=printf -Wl,--wrap=exit -lgcc -lm
+LDFLAGS := -g -march=$(RISCV_ARCH)_zicsr_zifencei -mabi=$(RISCV_ABI) -mcmodel=medlow -Wl,--wrap=scanf -Wl,--wrap=printf -Wl,--wrap=exit -lgcc -lm
 
 TOOL_DIR=$(dir $(compiler))