diff -up ./duplicity/gpginterface.py.orig ./duplicity/gpginterface.py
--- ./duplicity/gpginterface.py.orig	2018-05-07 22:23:26.933450233 +0300
+++ ./duplicity/gpginterface.py	2018-05-07 22:24:00.811571135 +0300
@@ -283,7 +283,7 @@ class GnuPG:
     """
 
     def __init__(self):
-        self.call = 'gpg'
+        self.call = 'gpg2'
         self.passphrase = None
         self.options = Options()