diff --git a/test/chebyshev_transform_test.cpp b/test/chebyshev_transform_test.cpp
index 5f19cde05..a6eed51df 100644
--- a/test/chebyshev_transform_test.cpp
+++ b/test/chebyshev_transform_test.cpp
@@ -85,7 +85,7 @@ void test_sinc_chebyshev_transform()
 
     Real Q = cheb.integrate();
     //NIntegrate[Sinc[x], {x, 0, 1}, WorkingPrecision -> 200, AccuracyGoal -> 150, PrecisionGoal -> 150, MaxRecursion -> 150]
-    Real Q_exp = BOOST_MATH_TEST_VALUE(0.94608307036718301494135331382317965781233795473811179047145477356668);
+    Real Q_exp = BOOST_MATH_TEST_VALUE(Real, 0.94608307036718301494135331382317965781233795473811179047145477356668);
     CHECK_ABSOLUTE_ERROR(Q_exp, Q, tol);
 }