diff --git a/pywxdump/dbpreprocess/utils.py b/pywxdump/dbpreprocess/utils.py
index 9f4d900..c761111 100644
--- a/pywxdump/dbpreprocess/utils.py
+++ b/pywxdump/dbpreprocess/utils.py
@@ -170,7 +170,7 @@ def dat2img(input_data):
 
                 out_bytes = np.bitwise_xor(input_bytes, t)  # 使用NumPy进行向量化的异或解密操作
                 md5 = get_md5(out_bytes)
-                return False, fomt, md5, out_bytes
+                return True, fomt, md5, out_bytes
         return False, False, False, False
     except ImportError:
         pass