diff --git a/roles/copr/backend/tasks/mount_fs.yml b/roles/copr/backend/tasks/mount_fs.yml
index fcf9c730e9..bae3d9c9c2 100644
--- a/roles/copr/backend/tasks/mount_fs.yml
+++ b/roles/copr/backend/tasks/mount_fs.yml
@@ -28,7 +28,7 @@
 
     - name: fail if ext4 filesystem is not found by devmapper
       debug: msg=checked
-      failed_when: stat_repo_fs.stat.exists
+      failed_when: not stat_repo_fs.stat.exists
 
 - name: prepare mount point
   file: state=directory path=/var/lib/copr/public_html