diff --git a/docs/ftldns/configfile.md b/docs/ftldns/configfile.md
index 068e076..e233c01 100755
--- a/docs/ftldns/configfile.md
+++ b/docs/ftldns/configfile.md
@@ -46,7 +46,7 @@ Rate-limiting may be disabled altogether by setting `RATE_LIMIT=0/0` (this resul
 
 #### `MAXLOGAGE=24.0` {#maxlogage data-toc-label='Max Log Age'}
 
-Up to how many hours of queries should be imported from the database and logs? Maximum is 24.0
+Up to how many hours of queries should be imported from the database and logs? Values greater than the hard-coded maximum of 24h need a locally compiled  `FTL` with a changed compile-time value.
 
 #### `PRIVACYLEVEL=0|1|2|3` {#privacylevel data-toc-label='Privacy Level'}