diff --git a/reana_job_controller/kubernetes_job_manager.py b/reana_job_controller/kubernetes_job_manager.py
index e23b0dc9..53a1b0e6 100644
--- a/reana_job_controller/kubernetes_job_manager.py
+++ b/reana_job_controller/kubernetes_job_manager.py
@@ -159,7 +159,8 @@ def execute(self):
                 (self.job['spec']['template']['spec']['containers'][0]
                     ['volumeMounts'].append(
                         {'name': volume['name'],
-                         'mountPath': '/cvmfs/{}'.format(mount_path)}
+                         'mountPath': '/cvmfs/{}'.format(mount_path),
+                         'readOnly': volume['readOnly']}
                 ))
                 self.job['spec']['template']['spec']['volumes'].append(volume)