diff --git a/varnish/default.vcl b/varnish/default.vcl
index 101cb84..ecb131b 100644
--- a/varnish/default.vcl
+++ b/varnish/default.vcl
@@ -145,7 +145,11 @@ sub vcl_backend_response {
     set beresp.grace = std.duration(std.tostring( beresp.ttl / 10 ), 10m);
     if (beresp.grace < 10m) { set beresp.grace = 10m; }
     if (beresp.grace > 2h)  { set beresp.grace = 2h; }
-    set beresp.keep = (beresp.ttl > 1h) ? 1h : beresp.ttl;
+    if (beresp.ttl > 1h) {
+        set beresp.keep = 1h;
+    } else {
+        set beresp.keep = beresp.ttl;
+    }
   } else {
     set beresp.grace = 0s;
     set beresp.keep  = 0s;