diff --git a/test/tricky_partial_spec_test.cpp b/test/tricky_partial_spec_test.cpp
index 781e652..92c4714 100644
--- a/test/tricky_partial_spec_test.cpp
+++ b/test/tricky_partial_spec_test.cpp
@@ -14,6 +14,7 @@
 #include <boost/type_traits/has_nothrow_constructor.hpp>
 #include <boost/type_traits/has_nothrow_copy.hpp>
 #include <boost/type_traits/is_base_and_derived.hpp>
+#include <boost/type_traits/is_base_of.hpp>
 #include <boost/type_traits/is_same.hpp>
 #include <boost/type_traits/is_convertible.hpp>
 #include <boost/type_traits/is_polymorphic.hpp>