diff --git a/g10/passphrase.c b/g10/passphrase.c
index 9003ea4d6..7cc9f6ebb 100644
--- a/g10/passphrase.c
+++ b/g10/passphrase.c
@@ -195,6 +195,7 @@ agent_send_all_options (assuan_context_t ctx)
   char *dft_display = NULL;
   const char *dft_ttyname = NULL;
   char *dft_ttytype = NULL;
+  char *dbus_session_address = NULL;
   char *old_lc = NULL;
   char *dft_lc = NULL;
   int rc = 0;
@@ -207,6 +208,14 @@ agent_send_all_options (assuan_context_t ctx)
         return -1;
     }
 
+  dbus_session_address = getenv ("DBUS_SESSION_BUS_ADDRESS");
+  if (dbus_session_address)
+    {
+      if (agent_send_option (ctx, "putenv=DBUS_SESSION_BUS_ADDRESS",
+                             dbus_session_address))
+        return -1;
+    }
+
   if (!opt.ttyname)
     {
       const char *tmp;