diff --git a/src/FFI.php b/src/FFI.php
index 304a3b4..194db6f 100644
--- a/src/FFI.php
+++ b/src/FFI.php
@@ -204,8 +204,6 @@ private static function libraryName(string $name, int $abi): string
                 // most *nix
                 return "$name.so.$abi";
         }
-
-        return null;
     }
 
     private static function libraryLoad(