diff --git a/proto/ospf/topology.c b/proto/ospf/topology.c
index 8affb1ff..0e90e770 100644
--- a/proto/ospf/topology.c
+++ b/proto/ospf/topology.c
@@ -12,7 +12,7 @@
 
 #include "ospf.h"
 
-#define HASH_DEF_ORDER 20
+#define HASH_DEF_ORDER 6
 #define HASH_HI_MARK *4
 #define HASH_HI_STEP 2
 #define HASH_HI_MAX 16