diff --git a/nfstream/engine/engine_cc.c b/nfstream/engine/engine_cc.c
index 27b1684..4a58963 100644
--- a/nfstream/engine/engine_cc.c
+++ b/nfstream/engine/engine_cc.c
@@ -1133,7 +1133,7 @@ typedef struct nf_flow {
   uint8_t splt_closed;
   char application_name[40];
   char category_name[40];
-  char requested_server_name[240];
+  char requested_server_name[256];
   char c_hash[48];
   char s_hash[48];
   char content_type[64];