diff --git a/src/AopPostfixClassName.php b/src/AopPostfixClassName.php
index a05c0f3f..3d332284 100644
--- a/src/AopPostfixClassName.php
+++ b/src/AopPostfixClassName.php
@@ -18,10 +18,10 @@ final class AopPostfixClassName
     public $postFix;
 
     /** @param class-string $class */
-    public function __construct(string $class, string $bindings)
+    public function __construct(string $class, string $bindings, string $classDir)
     {
         $fileTime = (string) filemtime((string) (new ReflectionClass($class))->getFileName());
-        $this->postFix = '_' . crc32($fileTime . $bindings);
+        $this->postFix = '_' . crc32($fileTime . $bindings . $classDir);
         $this->fqn = $class . $this->postFix;
     }
 }
diff --git a/src/Compiler.php b/src/Compiler.php
index 2cd72cb5..bb8b521f 100644
--- a/src/Compiler.php
+++ b/src/Compiler.php
@@ -65,7 +65,7 @@ public function compile(string $class, BindInterface $bind): string
             return $class;
         }
 
-        $className = new AopPostfixClassName($class, (string) $bind);
+        $className = new AopPostfixClassName($class, (string) $bind, $this->classDir);
         if (class_exists($className->fqn, false)) {
             return $className->fqn;
         }
diff --git a/src/Weaver.php b/src/Weaver.php
index 546de004..bf5c769c 100644
--- a/src/Weaver.php
+++ b/src/Weaver.php
@@ -62,7 +62,7 @@ public function newInstance(string $class, array $args): object
      */
     public function weave(string $class): string
     {
-        $aopClass = new AopPostfixClassName($class, $this->bindName);
+        $aopClass = new AopPostfixClassName($class, $this->bindName, $this->classDir);
         if (class_exists($aopClass->fqn, false)) {
             return $aopClass->fqn;
         }