diff --git a/include/flow/impl.hpp b/include/flow/impl.hpp
index 36a86215..16f6d643 100644
--- a/include/flow/impl.hpp
+++ b/include/flow/impl.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <flow/common.hpp>
+#include <flow/log.hpp>
 #include <flow/step.hpp>
 #include <log/log.hpp>