diff --git a/src/hook_manager.hh b/src/hook_manager.hh
index 80c99ff8..37f31804 100644
--- a/src/hook_manager.hh
+++ b/src/hook_manager.hh
@@ -3,7 +3,6 @@
 
 #include "id_map.hh"
 #include "completion.hh"
-#include "unordered_map.hh"
 
 namespace Kakoune
 {