diff --git a/board/maix-go/config.mk b/board/maix-go/config.mk
index 9abf644f..5f9d247e 100644
--- a/board/maix-go/config.mk
+++ b/board/maix-go/config.mk
@@ -4,7 +4,7 @@ export LFLAGS := -mcmodel=medany -march=rv64imafdc -mabi=lp64d -nostartfiles -Wl
 
 export APPLFLAGS := -mcmodel=medany -march=rv64imafdc -mabi=lp64d -nostartfiles -Wl,--gc-sections,-Map=XiUOS_app.map,-cref,-u, -T $(BSP_ROOT)/link_userspace.lds
 
-export CXXFLAGS := -mcmodel=medany -march=rv64imafdc -mabi=lp64d -fno-common -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -O0 -ggdb -fgnu89-inline
+export CXXFLAGS := -mcmodel=medany -march=rv64imafdc -mabi=lp64d -fno-common -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -O0 -ggdb 
 
 export CROSS_COMPILE ?=/opt/gnu-mcu-eclipse/riscv-none-gcc/8.2.0-2.1-20190425-1021/bin/riscv-none-embed-