diff --git a/Project/applications/smartcities/buffer.c b/Project/applications/smartcities/buffer.c
index bd3aa6d..b48af0f 100644
--- a/Project/applications/smartcities/buffer.c
+++ b/Project/applications/smartcities/buffer.c
@@ -80,7 +80,7 @@ for(j=0;j<4;j++){
 }
 	
 }
-
+//realloc
 char** join_buf(char** buf, uint32_t *buf_len){
 	char** n_buf;
 	int len= *buf_len;