diff --git a/electrum/submarine_swaps.py b/electrum/submarine_swaps.py
index 7709abd1e..04fd61652 100644
--- a/electrum/submarine_swaps.py
+++ b/electrum/submarine_swaps.py
@@ -355,6 +355,9 @@ class SwapManager(Logger):
                 if remaining_time > 0:
                     # too early for refund
                     return
+                 if swap.preimage:
+                    # we have been paid. do not try to get refund.
+                    return
             else:
                 if swap.preimage is None:
                     swap.preimage = self.lnworker.get_preimage(swap.payment_hash)