diff --git a/srcs/open_dhcp/query.cpp b/srcs/open_dhcp/query.cpp
index c26b251..043572c 100644
--- a/srcs/open_dhcp/query.cpp
+++ b/srcs/open_dhcp/query.cpp
@@ -119,6 +119,7 @@ static void sendUserList(data19 *req, const char *pRequest) {
 
     cJSON_Delete(pRoot);
     //cJSON_Delete(pRspMsg);
+    free((void *)pStrPro);
 
     req->bytes = (int)(fp - req->dp);
 }