diff --git a/roles/ceph-osd/tasks/activate_osds.yml b/roles/ceph-osd/tasks/activate_osds.yml
index 5011f856b..34dde8f5e 100644
--- a/roles/ceph-osd/tasks/activate_osds.yml
+++ b/roles/ceph-osd/tasks/activate_osds.yml
@@ -69,7 +69,7 @@
     - is_before_infernalis
 
 - name: get osd id (for or after infernalis)
-  shell: "ls /var/lib/ceph/osd/ | grep '-' | cut -d '-' -f 2"
+  shell: 'ls /var/lib/ceph/osd/ | grep -oP "\d+$"'
   changed_when: false
   failed_when: false
   register: osd_id