diff --git a/woa/init.py b/woa/init.py
index 9939c18..9d52495 100644
--- a/woa/init.py
+++ b/woa/init.py
@@ -37,8 +37,8 @@ class WOAHandler:
 		self.aes_key = None
 		if encoding_aes_key:
 			# 微信的 AES Key 是 base64 编码的 32 字节字符串
-			self.aes_key = base64.b64decode(encoding_aes_key + "=")
-		self.aes_key = None
+			self.aes_key = base64.b64decode(encoding_aes_key)
+		debug(f'{self.app_id=}::{self.token=}::{encoding_aes_key=}::{len(encoding_aes_key)=}')
 		self.media_manager = WeChatMediaManager(self.app_id, self.secret)
 
 	def _check_signature(self, signature: str, timestamp: str, nonce: str) -> bool: