diff --git a/test/cancel.cpp b/test/cancel.cpp
index 3efefb8..f1f9588 100644
--- a/test/cancel.cpp
+++ b/test/cancel.cpp
@@ -1,6 +1,7 @@
-#include <functional>
 #include <stdplus/cancel.hpp>
 
+#include <functional>
+
 #include <gtest/gtest.h>
 
 namespace stdplus