diff --git a/nlsr.c b/nlsr.c
index 9aca876..3a9148b 100644
--- a/nlsr.c
+++ b/nlsr.c
@@ -338,8 +338,8 @@
 	nlsr->in_content.p = &incoming_content;
 
 	nlsr->lsdb=(struct linkStateDatabase *)malloc(sizeof(struct linkStateDatabase *));
-	nlsr->lsdb->version=(char *)malloc(16);
-	nlsr->lsdb->version="0000000000000000";
+	//nlsr->lsdb->version=(char *)malloc(16);
+	nlsr->lsdb->version=0;
 
 	nlsr->lsdb->adj_lsdb = hashtb_create(sizeof(struct adj_lsa), &param_adj_lsdb);
 	nlsr->lsdb->name_lsdb = hashtb_create(sizeof(struct name_lsa), &param_name_lsdb);
diff --git a/nlsr.h b/nlsr.h
index d0df282..c491089 100644
--- a/nlsr.h
+++ b/nlsr.h
@@ -21,7 +21,7 @@
 
 struct linkStateDatabase
 {
-	char *version;
+	long int version;
 	struct hashtb *adj_lsdb;
 	struct hashtb *name_lsdb;
 };
diff --git a/nlsr_ndn.c b/nlsr_ndn.c
index 2d775ae..6d6a56c 100644
--- a/nlsr_ndn.c
+++ b/nlsr_ndn.c
@@ -352,17 +352,20 @@
 		/* Now comp points to the start of your potential number, and size is its length */
 	}
 
-	int dbcmp=strncmp(nlsr->lsdb->version,(char *)comp,16);
+	int db_version=atoi((char *)comp);
+	int dbcmp=db_version- nlsr->lsdb->version;
+	
+	//int dbcmp=strncmp(nlsr->lsdb->version,(char *)comp,16);
 
-	printf (" dbcmp = %d \n",dbcmp);	
+	//printf (" dbcmp = %d \n",dbcmp);	
 
 	if(dbcmp > 0)
 	{
-		printf("Has Updated database (Older: %s New: %s)\n",comp,nlsr->lsdb->version);
+		printf("Has Updated database (Older: %s New: %ld)\n",comp,nlsr->lsdb->version);
 	}
 	else 
 	{
-		printf("Data base is not updated than the older one (Older: %s New: %s)\n",comp,nlsr->lsdb->version);
+		printf("Data base is not updated than the older one (Older: %s New: %ld)\n",comp,nlsr->lsdb->version);
 		printf("Sending NACK Content back.....\n");
 
 		struct ccn_charbuf *data=ccn_charbuf_create();