diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/SConscript b/bsp/wch/risc-v/Libraries/ch32_drivers/SConscript
index 503fd88aab..b17b832dd0 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/SConscript
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/SConscript
@@ -1,7 +1,7 @@
 from building import *
 
 cwd = GetCurrentDir()
-src = []
+src = ['drv_common.c']
 path =  [cwd]
 
 if  GetDepend('SOC_RISCV_FAMILY_CH32'):