diff --git a/src/parallelization.f90 b/src/parallelization.f90
index ebb9573d4..17f9698a5 100644
--- a/src/parallelization.f90
+++ b/src/parallelization.f90
@@ -86,6 +86,10 @@ subroutine parallelization_init
   if (err /= 0)                              error stop 'Could not determine MPI integer size'
   if (typeSize*8 /= bit_size(0))             error stop 'Mismatch between MPI and DAMASK integer'
 
+  call MPI_Type_size(MPI_INTEGER8,typeSize,err)
+  if (err /= 0)                              error stop 'Could not determine MPI integer size'
+  if (typeSize*8 /= bit_size(0_pI64))        error stop 'Mismatch between MPI and DAMASK integer (long long)'
+
   call MPI_Type_size(MPI_DOUBLE,typeSize,err)
   if (err /= 0)                              error stop 'Could not determine MPI real size'
   if (typeSize*8 /= storage_size(0.0_pReal)) error stop 'Mismatch between MPI and DAMASK real'