diff --git a/src/ota/src/ota_client.c b/src/ota/src/ota_client.c
index ef42e41..7acb2bb 100644
--- a/src/ota/src/ota_client.c
+++ b/src/ota/src/ota_client.c
@@ -282,7 +282,6 @@ int IOT_OTA_Destroy(void *handle)
     }
 
     osc_deinit(h_ota->ch_signal);    
-    ofc_deinit(h_ota->ch_fetch);
     ota_lib_md5_deinit(h_ota->md5);
 
     if (NULL != h_ota->url) {
@@ -305,6 +304,14 @@ int IOT_OTA_Destroy(void *handle)
         HAL_Free(h_ota->download_name);
     }
 
+    if (NULL != h_ota->current_version) {
+        HAL_Free(h_ota->current_version);
+    }
+
+    if (NULL != h_ota->taskID) {
+        HAL_Free(h_ota->taskID);
+    }
+
     HAL_Free(h_ota);
     return SUCCESS_RET;
 }