diff --git a/nfs-client/tasks/umask.yml b/nfs-client/tasks/umask.yml
index 0fc288c520ebdd2858a169d7c370a1ae42c968e7..6c9e2d48fd1907f27159661246d6ae52e90c199a 100644
--- a/nfs-client/tasks/umask.yml
+++ b/nfs-client/tasks/umask.yml
@@ -8,7 +8,7 @@
     - config
 
 - name: activate pam.d session modules to set default umask
-  lineinfile: dest=/etc/pam.d/common-session line=session optional                        pam_umask.so
+  lineinfile: dest=/etc/pam.d/common-session line="session optional                        pam_umask.so"
   tags:
     - umask
     - pam