diff --git a/src/Util/ClassNameDetails.php b/src/Util/ClassNameDetails.php
index b7fd6c1b1..5a8df289b 100644
--- a/src/Util/ClassNameDetails.php
+++ b/src/Util/ClassNameDetails.php
@@ -54,6 +54,6 @@ public function getRelativeName(): string
 
     public function getRelativeNameWithoutSuffix(): string
     {
-        return str::removeSuffix($this->getRelativeName(), $this->suffix);
+        return Str::removeSuffix($this->getRelativeName(), $this->suffix);
     }
 }