diff --git a/src/Symfony/Component/RateLimiter/RateLimit.php b/src/Symfony/Component/RateLimiter/RateLimit.php
index ccc6a79a91baa..ee07445bef983 100644
--- a/src/Symfony/Component/RateLimiter/RateLimit.php
+++ b/src/Symfony/Component/RateLimiter/RateLimit.php
@@ -72,6 +72,6 @@ public function wait(): void
             return;
         }
 
-        usleep($delta * 1e6);
+        usleep((int) ($delta * 1e6));
     }
 }