diff --git a/core/modules/system/src/Plugin/Condition/RequestPath.php b/core/modules/system/src/Plugin/Condition/RequestPath.php
index 50077f9..70af557 100644
--- a/core/modules/system/src/Plugin/Condition/RequestPath.php
+++ b/core/modules/system/src/Plugin/Condition/RequestPath.php
@@ -148,6 +148,10 @@
     $request = $this->requestStack->getCurrentRequest();
     // Compare the lowercase path alias (if any) and internal path.
     $path = rtrim($this->currentPath->getPath($request), '/');
+    // The above rtrim empties string if the path equals '/', so setting it back to '/'.
+    if ($path == '') {
+      $path = '/';
+    }
     $path_alias = Unicode::strtolower($this->aliasManager->getAliasByPath($path));
 
     return $this->pathMatcher->matchPath($path_alias, $pages) || (($path != $path_alias) && $this->pathMatcher->matchPath($path, $pages));