diff --git a/components/libc/cplusplus/SConscript b/components/libc/cplusplus/SConscript
index 137241793879..51908cd94d69 100644
--- a/components/libc/cplusplus/SConscript
+++ b/components/libc/cplusplus/SConscript
@@ -4,7 +4,9 @@ from building import *
 Import('rtconfig')
 
 cwd     = GetCurrentDir()
-src     = []
+src     = Split('''
+cxx_crt_init.c
+''')
 CPPPATH = [cwd]
 
 if GetDepend('RT_USING_CPP_MULTITHREAD'):