diff --git a/CHANGELOG b/CHANGELOG
index aa5d1c1..98d082c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -12,6 +12,7 @@
 - fix handling of quoted slash alone.
 - fix parse confusion between attribute and attribute value.
 - fix version passed to get_supported_ver_and_cost.
+- mark map instances stale so they aren't "cleaned" during updates.
 
 18/06/2007 autofs-5.0.2
 -----------------------
diff --git a/daemon/lookup.c b/daemon/lookup.c
index 70b9e02..4f2b318 100644
--- a/daemon/lookup.c
+++ b/daemon/lookup.c
@@ -325,6 +325,7 @@ static int read_file_source_instance(struct autofs_point *ap, struct map_source
 		instance->recurse = map->recurse;
 		instance->depth = map->depth;
 	}
+	instance->stale = map->stale;
 
 	return do_read_map(ap, instance, age);
 }
@@ -346,6 +347,7 @@ static int read_source_instance(struct autofs_point *ap, struct map_source *map,
 		instance->recurse = map->recurse;
 		instance->depth = map->depth;
 	}
+	instance->stale = map->stale;
 
 	return do_read_map(ap, instance, age);
 }