diff --git a/electrum/gui/qt/request_list.py b/electrum/gui/qt/request_list.py
index 67ed25415..b2e09339a 100644
--- a/electrum/gui/qt/request_list.py
+++ b/electrum/gui/qt/request_list.py
@@ -117,7 +117,7 @@ class RequestList(MyTreeView):
                 continue
             request_type = req['type']
             timestamp = req.get('time', 0)
-            expiration = req.get('exp', None)
+            expiration = req.get('exp', 0)
             amount = req.get('amount')
             message = req.get('message') or req.get('memo')
             date = format_time(timestamp)
diff --git a/electrum/util.py b/electrum/util.py
index d565d0353..81ee16b28 100644
--- a/electrum/util.py
+++ b/electrum/util.py
@@ -104,6 +104,7 @@ pr_tooltips = {
 }
 
 pr_expiration_values = {
+    0: _('Never'),
     10*60: _('10 minutes'),
     60*60: _('1 hour'),
     24*60*60: _('1 day'),
@@ -112,12 +113,13 @@ pr_expiration_values = {
 
 def get_request_status(req):
     status = req['status']
-    if req['status'] == PR_UNPAID and 'exp' in req and req['time'] + req['exp'] < time.time():
+    exp = req.get('exp', 0)
+    if req['status'] == PR_UNPAID and exp > 0 and req['time'] + req['exp'] < time.time():
         status = PR_EXPIRED
     status_str = pr_tooltips[status]
     if status == PR_UNPAID:
-        if req.get('exp'):
-            expiration = req['exp'] + req['time']
+        if exp > 0:
+            expiration = exp + req['time']
             status_str = _('Expires') + ' ' + age(expiration, include_seconds=True)
         else:
             status_str = _('Pending')
diff --git a/electrum/wallet.py b/electrum/wallet.py
index fe390d59f..7c418783d 100644
--- a/electrum/wallet.py
+++ b/electrum/wallet.py
@@ -1527,12 +1527,10 @@ class Abstract_Wallet(AddressSynchronizer):
         timestamp = r.get('time', 0)
         if timestamp and type(timestamp) != int:
             timestamp = 0
-        expiration = r.get('exp')
-        if expiration and type(expiration) != int:
-            expiration = 0
+        exp = r.get('exp', 0)
         paid, conf = self.get_payment_status(address, amount)
         if not paid:
-            if expiration is not None and time.time() > timestamp + expiration:
+            if exp > 0 and time.time() > timestamp + exp:
                 status = PR_EXPIRED
             else:
                 status = PR_UNPAID