diff --git a/src/search/search_algorithms/iterated_search.cc b/src/search/search_algorithms/iterated_search.cc
index 8addead747..ccc8c7935d 100644
--- a/src/search/search_algorithms/iterated_search.cc
+++ b/src/search/search_algorithms/iterated_search.cc
@@ -141,8 +141,9 @@ class IteratedSearchFeature
             true);
         add_option<bool>(
             "pass_bound",
-            "use bound from previous search. The bound is the real cost "
-            "of the plan found before, regardless of the cost_type parameter.",
+            "use the cost of the best solution found as a `bound` for "
+            "component algorithms, unless these already have a lower bound "
+            "set.",
             "true");
         add_option<bool>(
             "repeat_last",