diff --git a/src/exchange/taler-exchange-httpd_db.c b/src/exchange/taler-exchange-httpd_db.c
index 383a7b297..7ced8b88e 100644
--- a/src/exchange/taler-exchange-httpd_db.c
+++ b/src/exchange/taler-exchange-httpd_db.c
@@ -24,6 +24,7 @@
 #include <gnunet/gnunet_json_lib.h>
 #include "taler_json_lib.h"
 #include "taler_mhd_lib.h"
+#include "taler_exchangedb_lib.h"
 #include "taler-exchange-httpd_db.h"
 #include "taler-exchange-httpd_responses.h"