diff --git a/proto/ospf/lsalib.c b/proto/ospf/lsalib.c
index 020ca620..ac56a100 100644
--- a/proto/ospf/lsalib.c
+++ b/proto/ospf/lsalib.c
@@ -340,17 +340,19 @@ int
 lsa_comp(struct ospf_lsa_header *l1, struct ospf_lsa_header *l2)
 			/* Return codes from point of view of l1 */
 {
-  if(l1->sn<l2->sn) return CMP_NEWER;
-    if(l1->sn==l2->sn)
-    {
-      if(l1->checksum=!l2->checksum)
-        return l1->checksum<l2->checksum ? CMP_OLDER : CMP_NEWER;
-      if(l1->age==LSA_MAXAGE) return CMP_NEWER;
-      if(l2->age==LSA_MAXAGE) return CMP_OLDER;
-      if(abs(l1->age-l2->age)>LSA_MAXAGEDIFF)
-        return l1->age<l2->age ? CMP_NEWER : CMP_OLDER;
-    }
-    return CMP_SAME;
+  if(l1->sn>l2->sn) return CMP_NEWER;
+  if(l1->sn<l2->sn) return CMP_OLDER;
+
+  if(l1->checksum=!l2->checksum)
+    return l1->checksum<l2->checksum ? CMP_OLDER : CMP_NEWER;
+
+  if((l1->age==LSA_MAXAGE)&&(l2->age!=LSA_MAXAGE)) return CMP_NEWER;
+  if((l2->age==LSA_MAXAGE)&&(l1->age!=LSA_MAXAGE)) return CMP_OLDER;
+
+  if(abs(l1->age-l2->age)>LSA_MAXAGEDIFF)
+    return l1->age<l2->age ? CMP_NEWER : CMP_OLDER;
+
+  return CMP_SAME;
 }
 
 /* LSA can be temporarrily, but body must be mb_alloced. */