diff --git a/g/GROMACS/GROMACS-2023-foss-2022a-CUDA-12.0.0-PLUMED-2.9.0.eb b/g/GROMACS/GROMACS-2023-foss-2022a-CUDA-12.0.0-PLUMED-2.9.0.eb
index 6323ae02..604cbc48 100644
--- a/g/GROMACS/GROMACS-2023-foss-2022a-CUDA-12.0.0-PLUMED-2.9.0.eb
+++ b/g/GROMACS/GROMACS-2023-foss-2022a-CUDA-12.0.0-PLUMED-2.9.0.eb
@@ -49,7 +49,7 @@ dependencies = [
     ('PLUMED', local_plum_ver),
 ]
 
-configopts = ' -DGMX_MPI=ON'
+configopts = '-DGMX_MPI=ON'
 
 exts_defaultclass = 'PythonPackage'