diff --git a/knots/resource-pool.scm b/knots/resource-pool.scm
index 355cfa9..6501191 100644
--- a/knots/resource-pool.scm
+++ b/knots/resource-pool.scm
@@ -87,7 +87,7 @@
                              scheduler
                              (name "unnamed")
                              (reply-timeout 0.5)
-                             add-resources-parallelism)
+                             (add-resources-parallelism 1))
   (define channel (make-channel))
 
   (define pool