diff --git a/doc/bird.sgml b/doc/bird.sgml
index a25d8b78..f81b2323 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -1008,6 +1008,7 @@ on nonbroadcast networks.
 <code>
 protocol ospf &lt;name&gt; {
 	rfc1583compat &lt;switch&gt;;
+	tick &lt;num&gt;;
 	area &lt;id&gt; {
 		stub cost &lt;num&gt;;
 		tick &lt;num&gt;;
@@ -1076,9 +1077,10 @@ protocol ospf &lt;name&gt; {
 	 Default value is no. (Area is not stub.)
 
 	<tag>tick <M>num</M></tag>
-	 The routing table calculation is not performed when a single link state
+	 The routing table calculation of clean-up in areas' databases
+         is not performed when a single link state
 	 change arrives. To lower the CPU utilization, it's processed later
-	 at periodical intervals of <m/num/ seconds. The default value is 7.
+	 at periodical intervals of <m/num/ seconds. The default value is 1.
 
 	<tag>networks { <m/set/ }</tag>
          Definition of area IP ranges. This is used in summary lsa origination.
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index ea77aa98..13a5f82c 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -51,8 +51,8 @@
 #define MINLSARRIVAL 1
 #define LSINFINITY 0xffffff
 
-#define DEFAULT_OSPFTICK 5
-#define DEFAULT_AREATICK 4
+#define DEFAULT_OSPFTICK 1
+#define DEFAULT_AREATICK 1
 #define DEFAULT_RFC1583 1	/* compatibility with rfc1583 */