diff --git a/code/math.f90 b/code/math.f90
index 8694e30ee..fba431a56 100644
--- a/code/math.f90
+++ b/code/math.f90
@@ -178,7 +178,6 @@ subroutine math_init
  use, intrinsic :: iso_fortran_env                                                                  ! to get compiler_version and compiler_options (at least for gfortran 4.6 at the moment)
  use prec,     only: tol_math_check
  use numerics, only: &
-   worldrank, &
    fixedSeed
  use IO,       only: IO_error, IO_timeStamp