diff --git a/cmake/rv32imc.cmake b/cmake/rv32imc.cmake
index 706da25..c21ee74 100644
--- a/cmake/rv32imc.cmake
+++ b/cmake/rv32imc.cmake
@@ -52,7 +52,7 @@ set( CMAKE_OBJCOPY      ${RISCV_TOOLCHAIN_BIN_PATH}/${CROSS_COMPILE}objcopy
 set( CMAKE_OBJDUMP      ${RISCV_TOOLCHAIN_BIN_PATH}/${CROSS_COMPILE}objdump
      CACHE FILEPATH "The toolchain objdump command " FORCE )
 
-set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=${RISCV_ARCH} -mabi=${RISCV_ABI}" )
+set( CMAKE_C_FLAGS "-march=${RISCV_ARCH} -mabi=${RISCV_ABI} -mcmodel=medany" )
 
 set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )
 set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )
diff --git a/cmake/rv64gc.cmake b/cmake/rv64gc.cmake
index e705e3c..2f37f14 100644
--- a/cmake/rv64gc.cmake
+++ b/cmake/rv64gc.cmake
@@ -52,7 +52,7 @@ set( CMAKE_OBJCOPY      ${RISCV_TOOLCHAIN_BIN_PATH}/${CROSS_COMPILE}objcopy
 set( CMAKE_OBJDUMP      ${RISCV_TOOLCHAIN_BIN_PATH}/${CROSS_COMPILE}objdump
      CACHE FILEPATH "The toolchain objdump command " FORCE )
 
-set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=${RISCV_ARCH} -mabi=${RISCV_ABI} -mcmodel=medany" )
+set( CMAKE_C_FLAGS "-march=${RISCV_ARCH} -mabi=${RISCV_ABI} -mcmodel=medany" )
 
 set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )
 set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )