diff --git a/src/cfgparse-listen.c b/src/cfgparse-listen.c
index d5df78c51..5b494337d 100644
--- a/src/cfgparse-listen.c
+++ b/src/cfgparse-listen.c
@@ -31,6 +31,7 @@
 #include <haproxy/stats-t.h>
 #include <haproxy/stick_table.h>
 #include <haproxy/tcpcheck.h>
+#include <haproxy/tools.h>
 #include <haproxy/uri_auth.h>
 
 /* some keywords that are still being parsed using strcmp() and are not