diff --git a/src/vars.c b/src/vars.c
index edcf1af..de55f14 100644
--- a/src/vars.c
+++ b/src/vars.c
@@ -7,7 +7,7 @@
 
 #include <types/vars.h>
 
-#include <proto/arg.h>
+#include <haproxy/arg.h>
 #include <proto/http_rules.h>
 #include <proto/http_ana.h>
 #include <proto/sample.h>