diff --git a/include/boost/math/special_functions/chebyshev.hpp b/include/boost/math/special_functions/chebyshev.hpp
index 2ea156098..7aff765e6 100644
--- a/include/boost/math/special_functions/chebyshev.hpp
+++ b/include/boost/math/special_functions/chebyshev.hpp
@@ -10,6 +10,7 @@
 #include <boost/math/policies/error_handling.hpp>
 #include <boost/math/constants/constants.hpp>
 #include <boost/math/tools/promotion.hpp>
+#include <boost/math/tools/throw_exception.hpp>
 
 #if (__cplusplus > 201103) || (defined(_CPPLIB_VER) && (_CPPLIB_VER >= 610))
 #  define BOOST_MATH_CHEB_USE_STD_ACOSH