diff --git a/src/51d.c b/src/51d.c
index ceef355..6d3e86f 100644
--- a/src/51d.c
+++ b/src/51d.c
@@ -5,7 +5,7 @@
 #include <common/chunk.h>
 #include <common/buffer.h>
 #include <haproxy/errors.h>
-#include <common/hathreads.h>
+#include <haproxy/thread.h>
 #include <types/global.h>
 #include <proto/arg.h>
 #include <proto/http_fetch.h>