diff --git a/src/cfgparse-ssl.c b/src/cfgparse-ssl.c
index 0a90da7ad..bf7bfc698 100644
--- a/src/cfgparse-ssl.c
+++ b/src/cfgparse-ssl.c
@@ -37,6 +37,7 @@
 #include <haproxy/listener.h>
 #include <haproxy/openssl-compat.h>
 #include <haproxy/ssl_sock.h>
+#include <haproxy/tools.h>
 
 
 /****************** Global Section Parsing ********************************************/