diff --git a/test/common_factor_test.cpp b/test/common_factor_test.cpp
index 04897da..8fd7288 100644
--- a/test/common_factor_test.cpp
+++ b/test/common_factor_test.cpp
@@ -23,7 +23,6 @@
 #include <boost/mpl/list.hpp>            // for boost::mpl::list
 #include <boost/operators.hpp>
 #include <boost/test/unit_test.hpp>
-#include <boost/test/test_case_template.hpp>
 
 #include <istream>  // for std::basic_istream
 #include <limits>   // for std::numeric_limits