diff --git a/components/drivers/spi/SConscript b/components/drivers/spi/SConscript
index df0ffb7141..94c78456dc 100644
--- a/components/drivers/spi/SConscript
+++ b/components/drivers/spi/SConscript
@@ -31,10 +31,11 @@ if GetDepend('RT_USING_SFUD'):
     if GetDepend('RT_SFUD_USING_SFDP'):
         src_device += ['sfud/src/sfud_sfdp.c']
 
-    if rtconfig.PLATFORM in GetGCCLikePLATFORM():
-        LOCAL_CFLAGS += ' -std=c99'
-    elif rtconfig.PLATFORM in ['armcc']:
-        LOCAL_CFLAGS += ' --c99'
+    if not GetDepend('RT_USING_DM'):
+        if rtconfig.PLATFORM in GetGCCLikePLATFORM():
+            LOCAL_CFLAGS += ' -std=c99'
+        elif rtconfig.PLATFORM in ['armcc']:
+            LOCAL_CFLAGS += ' --c99'
 
 if GetDepend('RT_USING_DM'):
     src += ['dev_spi_dm.c', 'dev_spi_bus.c']