diff --git a/src/Routing/RequestContext.php b/src/Routing/RequestContext.php
index c12d7e7..321aec9 100644
--- a/src/Routing/RequestContext.php
+++ b/src/Routing/RequestContext.php
@@ -82,7 +82,7 @@ private function prepareSlug(string $slug): string
         }
 
         // Remove the locale code which is at the beginning of the slug
-        return (string) preg_replace(sprintf('/^%s\//', $localeCode), '', $slug);
+        return (string) preg_replace(\sprintf('/^%s\//', $localeCode), '', $slug);
     }
 
     /**
@@ -97,6 +97,6 @@ public function __call(string $name, array $arguments)
             return \call_user_func($callback, ...$arguments);
         }
 
-        throw new Exception(sprintf('Method %s not found for class "%s"', $name, \get_class($this->decorated)));
+        throw new Exception(\sprintf('Method %s not found for class "%s"', $name, \get_class($this->decorated)));
     }
 }
diff --git a/src/Validator/Constraints/UniqueSlugByChannelValidator.php b/src/Validator/Constraints/UniqueSlugByChannelValidator.php
index 914483a..92cd7d6 100644
--- a/src/Validator/Constraints/UniqueSlugByChannelValidator.php
+++ b/src/Validator/Constraints/UniqueSlugByChannelValidator.php
@@ -55,7 +55,7 @@ public function validate($value, Constraint $constraint): void
                         '%channel%' => $channel->getCode(),
                         '%locale%' => $translation->getLocale(),
                     ])
-                        ->atPath(sprintf('translations[%s].slug', $translation->getLocale()))
+                        ->atPath(\sprintf('translations[%s].slug', $translation->getLocale()))
                         ->addViolation()
                     ;
                 }