diff --git a/src/util/IntrusiveList.hxx b/src/util/IntrusiveList.hxx
index 9a1a4eaef..df4bb1651 100644
--- a/src/util/IntrusiveList.hxx
+++ b/src/util/IntrusiveList.hxx
@@ -5,7 +5,7 @@
 
 #include "Cast.hxx"
 #include "Concepts.hxx"
-#include "IntrusiveHookMode.hxx"
+#include "IntrusiveHookMode.hxx" // IWYU pragma: export
 #include "MemberPointer.hxx"
 #include "OptionalCounter.hxx"
 
diff --git a/src/util/IntrusiveTreeSet.hxx b/src/util/IntrusiveTreeSet.hxx
index 3b788a60a..6594f8b26 100644
--- a/src/util/IntrusiveTreeSet.hxx
+++ b/src/util/IntrusiveTreeSet.hxx
@@ -8,7 +8,7 @@
 
 #include "Cast.hxx"
 #include "Concepts.hxx"
-#include "IntrusiveHookMode.hxx"
+#include "IntrusiveHookMode.hxx" // IWYU pragma: export
 #include "MemberPointer.hxx"
 #include "OptionalCounter.hxx"