diff --git a/src/import.cc b/src/import.cc
index 0fc2c52c1..6599a87f5 100644
--- a/src/import.cc
+++ b/src/import.cc
@@ -40,6 +40,7 @@
 #include "osr/ways.h"
 
 #include "adr/adr.h"
+#include "adr/area_database.h"
 #include "adr/reverse.h"
 #include "adr/typeahead.h"