diff --git a/app/lib/a_process/pd_hf.c b/app/lib/a_process/pd_hf.c
index 3f50ba0..cb8948b 100755
--- a/app/lib/a_process/pd_hf.c
+++ b/app/lib/a_process/pd_hf.c
@@ -317,8 +317,8 @@ void _hf_recv_heartbeat(uint8_t slot, char *pkt, uint16_t len)
     dau_data_send(dau, &head_data);
 
     /* 申请内存 */
-    data = XMALLOC(MTYPE_CSG, sizeof(hf_heartbeat_t));
-    if (!data)
+    param = XMALLOC(MTYPE_CSG, sizeof(hf_heartbeat_t));
+    if (!param)
     {
         DBG(DBG_M_PD_HF_ERR, "XMALLOC ERROR!\r\n");
         return;