diff --git a/core/mac/src/cfg/cfg_api.c b/core/mac/src/cfg/cfg_api.c
index c351063cff4c..8b15ba20a42f 100644
--- a/core/mac/src/cfg/cfg_api.c
+++ b/core/mac/src/cfg/cfg_api.c
@@ -71,7 +71,7 @@ uint32_t cfg_need_restart(tpAniSirGlobal pMac, uint16_t cfgId)
 	return !!(pMac->cfg.gCfgEntry[cfgId].control & CFG_CTL_RESTART);
 }
 
-void cfg_get_strindex(tpAniSirGlobal pMac, uint16_t cfgId)
+static void cfg_get_strindex(tpAniSirGlobal pMac, uint16_t cfgId)
 {
 	uint16_t i = 0;