diff --git a/eopayment/common.py b/eopayment/common.py
index 258f856..37a00f6 100644
--- a/eopayment/common.py
+++ b/eopayment/common.py
@@ -63,7 +63,11 @@ def force_byte(s, encoding='utf-8'):
         return s.encode()
 
 
-class ResponseError(Exception):
+class PaymentException(Exception):
+    pass
+
+
+class ResponseError(PaymentException):
     pass