diff --git a/envri-hub/inventory/99-all.yaml b/envri-hub/inventory/99-all.yaml
index 61a698e4017b9f39866132a779c91cf28865cfed..5a112e0cf1f85c1cd4992ca98d97274b073994b2 100644
--- a/envri-hub/inventory/99-all.yaml
+++ b/envri-hub/inventory/99-all.yaml
@@ -14,7 +14,7 @@ all:
     ansible_ssh_common_args: >-
       -o ProxyCommand="ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -W %h:%p -q ubuntu@admin.envri-vre.cloud.cesnet.cz"
       -o StrictHostKeyChecking=no
-      -o UserKnownHostsFile=/dev/null'
+      -o UserKnownHostsFile=/dev/null
 
     site_name: envri-hub
     vault_mount_point: secrets/users/e1662e20-e34b-468c-b0ce-d899bc878364@egi.eu/envri-hub