diff --git a/src/idvaluemap.hh b/src/idvaluemap.hh
index 8278b177..7f7dc7de 100644
--- a/src/idvaluemap.hh
+++ b/src/idvaluemap.hh
@@ -1,6 +1,9 @@
 #ifndef idvaluemap_hh_INCLUDED
 #define idvaluemap_hh_INCLUDED
 
+#include <vector>
+#include "completion.hh"
+
 namespace Kakoune
 {