diff --git a/docs/advanced/runtime-config.md b/docs/advanced/runtime-config.md
index a575da0..f1a084c 100644
--- a/docs/advanced/runtime-config.md
+++ b/docs/advanced/runtime-config.md
@@ -95,7 +95,7 @@ rate_limiter = RateLimiter()
 
 @backoff.on_predicate(
     backoff.constant,
-    interval=lambda: rate_limiter.get_interval(),
+    interval=rate_limiter.get_interval,
 )
 def adaptive_poll():
     return check_resource()