diff --git a/ze/btx_zeinterval_callbacks.hpp b/ze/btx_zeinterval_callbacks.hpp
index ee24fda2..7aa60a6d 100644
--- a/ze/btx_zeinterval_callbacks.hpp
+++ b/ze/btx_zeinterval_callbacks.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <metababel/metababel.h>
 #include "xprof_utils.hpp"
 #include <cstddef> // Bytes
 #include <tuple>