diff --git a/grafana.yaml b/grafana.yaml
index 5c618ea..e0e4bb3 100644
--- a/grafana.yaml
+++ b/grafana.yaml
@@ -84,7 +84,7 @@ spec:
 
             # Give Admin role to allowed group members
             - name: GF_AUTH_GENERIC_OAUTH_ROLE_ATTRIBUTE_PATH
-              value: "contains(groups[*], 'github.com:codemowers:admins') && 'Admin' || 'Viewer'"
+              value: "contains(groups[*], 'github.com:codemowers:admins') && 'Admin' || Viewer"
 
             - name: GF_AUTH_ANONYMOUS_ENABLED
               value: "false"