diff --git a/src/ParamConverter/HashidsParamConverter.php b/src/ParamConverter/HashidsParamConverter.php
index 4c80a49..d2ad2b3 100644
--- a/src/ParamConverter/HashidsParamConverter.php
+++ b/src/ParamConverter/HashidsParamConverter.php
@@ -52,7 +52,7 @@ private function decode(Request $request, ParamConverter $configuration): void
             $request->attributes->set($name, current($hashids));
         }
 
-        if (!$this->autoConvert && !$this->hasHashidDecoded($hashids)) {
+        if ($this->autoConvert && !$this->hasHashidDecoded($hashids)) {
             throw new LogicException(sprintf('Unable to decode parameter "%s".', $name));
         }
     }