diff --git a/include/proto/fd.h b/include/proto/fd.h
index f882b54..2d45e06 100644
--- a/include/proto/fd.h
+++ b/include/proto/fd.h
@@ -31,7 +31,7 @@
 #include <common/ticks.h>
 #include <haproxy/time.h>
 #include <types/fd.h>
-#include <proto/activity.h>
+#include <haproxy/activity.h>
 
 /* public variables */