diff --git a/core/lib/Drupal/Core/Routing/UrlMatcher.php b/core/lib/Drupal/Core/Routing/UrlMatcher.php
index 49bff8f..bd1d6cb 100644
--- a/core/lib/Drupal/Core/Routing/UrlMatcher.php
+++ b/core/lib/Drupal/Core/Routing/UrlMatcher.php
@@ -43,7 +43,12 @@ public function finalMatch(RouteCollection $collection, Request $request) {
     $context->fromRequest($request);
     $this->setContext($context);
 
-    return $this->match($this->currentPath->getPath($request));
+    // The matcher expects raw path while we have it already decoded by the
+    // \Drupal\Core\PathProcessor\PathProcessorDecode. Encode it back so that
+    // route parameter are not double decoded.
+    $encoded_path = rawurlencode($this->currentPath->getPath($request));
+
+    return $this->match($encoded_path);
   }
 
 }