diff --git a/tasks/install.yml b/tasks/install.yml
index 4689cfbd18c0a8c947980bfeae90ee157bf62fee..5da935bc9b0a4032eb005428dc10d423d943e0b3 100644
--- a/tasks/install.yml
+++ b/tasks/install.yml
@@ -164,7 +164,7 @@
 - name: Include mountpoints
   include_tasks: mountpoints.yml
   with_items: '{{ drupal.mountpoints|default([]) }}'
-  when: drupal.install_extra_dirs|default(true)
+  when: drupal.install_extra_dirs|default(true) and item.fstype is defined
 
 - name: Include files
   include_tasks: files.yml