diff --git a/tools/HPC scripts/gprmax_omp_mpi.sh b/tools/HPC scripts/gprmax_omp_mpi.sh
index 04a70729..06db3b7b 100644
--- a/tools/HPC scripts/gprmax_omp_mpi.sh	
+++ b/tools/HPC scripts/gprmax_omp_mpi.sh	
@@ -34,4 +34,4 @@ export OMP_NUM_THREADS=8
 
 ### Run gprMax with input file
 cd $HOME/gprMax
-mpirun -np 100 python -m gprMax mymodel.in -n 100 -mpi
\ No newline at end of file
+mpiexec -n 100 python -m gprMax mymodel.in -n 100 -mpi
\ No newline at end of file