diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4bfca7f..b74a146 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,9 +22,9 @@ option(X86                  "Build for x86"                     OFF     )
 option(RISCV                "Build for RISC-V"                  OFF     )
 
 # accelerator options
-option(AVX                  "Use AVX implementation" OFF)
-option(RVV                  "Use RISCV vector extension implementation" OFF)
-option(ZVFH                 "Use RISCV vector extension with half precision floating point" OFF)
+option(AVX                  "Use AVX implementation"            OFF     )
+option(RVV                  "Use RISCV vector extension"        OFF     )
+option(ZVFH                 "Use RISCV half-precision floating-point vector extension" OFF)
 
 
 add_compile_options(-O1 -Wall -Wextra)
@@ -49,18 +49,21 @@ set(SPECS_FILE          "htif_nano.specs")
 set(SPEC_FLAGS          -specs=${SPECS_FILE} -specs=${WRAP_SPECS_FILE})
 
 set(MARCH               "rv64gc")
+set(MABI                "lp64d")
+set(MCMODEL             "medany")
+
+# generate march flags
 if (RVV)
   list(APPEND MARCH "v")
   list(APPEND MARCH "_zicntr")
   
   if (ZVFH)
     list(APPEND MARCH "_zfh")
+    list(APPEND MARCH "_zvfh")
   endif()
 endif()
 
 list(JOIN MARCH "" MARCH)
-set(MABI                "lp64d")
-set(MCMODEL             "medany")
 
 if (NOT DEFINED LINKER_SCRIPT)
   set(LINKER_SCRIPT     ${CMAKE_SOURCE_DIR}/toolchain/htif.ld)