diff --git a/global-wait.rsc b/global-wait.rsc
index ca3fc0c4..05948bdc 100644
--- a/global-wait.rsc
+++ b/global-wait.rsc
@@ -9,4 +9,5 @@
 # https://rsc.eworm.de/doc/global-wait.md
 
 :global GlobalFunctionsReady;
-:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
+:onerror e { :retry { :if ($GlobalFunctionsReady != true) \
+  do={ :error "Global functions not ready."; }; } delay=500ms max=20; } do={ :log error $e; };