diff --git a/glicid-tainted/packages/chemistry.scm b/glicid-tainted/packages/chemistry.scm
index 452c5fd..a30eee8 100644
--- a/glicid-tainted/packages/chemistry.scm
+++ b/glicid-tainted/packages/chemistry.scm
@@ -20,6 +20,7 @@
 #:use-module (gnu packages sphinx)
 #:use-module (gnu packages check)
 #:use-module (gnu packages gcc)
+#:use-module (gnu packages ssh)
 #:use-module (guix-science-nonfree packages cuda)
 #:use-module (glicid packages mpi)
 
@@ -98,6 +99,7 @@
                    "-DGMX_EXTERNAL_TNG=on"
                    "-DGMX_EXTERNAL_ZLIB=on"
                    "-DGMX_HWLOC=ON"
+	           "-DGMX_MPI=ON"
                    "-DGMX_GPU=CUDA"
                    (string-append "-DCUDA_TOOLKIT_ROOT_DIR=" #$(this-package-input "cuda-toolkit"))
                    "-DGMX_EXTERNAL_TINYXML2=on"
@@ -143,7 +145,7 @@
     (inputs
          (modify-inputs (package-inputs gromacs)
               (append cuda 
-hwloc openmpi-glicid-waves
+hwloc openmpi-glicid-waves openssh-sans-x ;; ssh is because openmpi use rsh and tests use it !
 ))))
 )