diff --git a/src/message_api.cc b/src/message_api.cc
index 6f87bb8..2f7b2cc 100644
--- a/src/message_api.cc
+++ b/src/message_api.cc
@@ -66,11 +66,6 @@ namespace pEp {
             return (int) ::color_from_rating((PEP_rating) rating);
         }
 
-        void _config_keep_sync_msg(bool enabled)
-        {
-            ::config_keep_sync_msg(adapter.session(), enabled);
-        }
-
         boost::python::tuple sync_decode(object buffer)
         {
             Py_buffer src;
diff --git a/src/message_api.hh b/src/message_api.hh
index 83c75ac..0ddd864 100644
--- a/src/message_api.hh
+++ b/src/message_api.hh
@@ -11,7 +11,6 @@ namespace pEp {
                 int enc_format = 4, int flags = 0);
         boost::python::tuple decrypt_message(Message src, int flags=0);
         int _color(int rating);
-        void _config_keep_sync_msg(bool enabled);
         object sync_search(string name);
     }
 }
diff --git a/src/pEpmodule.cc b/src/pEpmodule.cc
index 6cbdfa7..2321c15 100644
--- a/src/pEpmodule.cc
+++ b/src/pEpmodule.cc
@@ -365,10 +365,6 @@ BOOST_PYTHON_MODULE(pEp)
     "text = trustwords(ident_own, ident_partner)\n"
     "\n"
     "calculate trustwords for two Identities");
-    def("config_keep_sync_msg", &_config_keep_sync_msg,
-    "config_keep_sync_msg(enabled)\n"
-    "\n"
-    "configure if sync messages are being kept or automatically removed (default)");
 
     // messageToSend()