diff --git a/include/Typedef.h b/include/Typedef.h
index 3b5004c77..cea3ad913 100644
--- a/include/Typedef.h
+++ b/include/Typedef.h
@@ -97,7 +97,7 @@ const TestProbID_t
    TESTPROB_HYDRO_CONDUCTION_RING              =   25,
    TESTPROB_HYDRO_VELOCITY_PROFILE_DAMPING     =   27,
    TESTPROB_HYDRO_MHD_LINEAR_WAVE_VISCOSITY    =   28,
-   TESTPROB_HYDRO_MHD_LINEAR_WAVE_VISCOSITY    =   29,
+   TESTPROB_HYDRO_MHD_CPAW                     =   29,
    TESTPROB_HYDRO_BARRED_POT                   =   51,
    TESTPROB_HYDRO_JET_ICM_WALL                 =   52,
    TESTPROB_HYDRO_CDM_LSS                      =  100,