diff --git a/nlsr_lsdb.h b/nlsr_lsdb.h
index 3983305..a5316f0 100644
--- a/nlsr_lsdb.h
+++ b/nlsr_lsdb.h
@@ -33,7 +33,7 @@
 	long int orig_time;
 	long int ls_id;
 	struct ccn_charbuf *orig_router;
-	unsigned char isValid;
+	unsigned int isValid;
 
 };