diff --git a/qt/aqt/browser.py b/qt/aqt/browser.py
index 53d426c85..3b7c900f7 100644
--- a/qt/aqt/browser.py
+++ b/qt/aqt/browser.py
@@ -85,7 +85,7 @@ class DataModel(QAbstractTableModel):
         self.cards: List[int] = []
         self.cardObjs: Dict[int, Card] = {}
 
-    def getCard(self, index):
+    def getCard(self, index: QModelIndex) -> Card:
         id = self.cards[index.row()]
         if not id in self.cardObjs:
             self.cardObjs[id] = self.col.getCard(id)
@@ -316,13 +316,13 @@ class DataModel(QAbstractTableModel):
         elif type == "note":
             return c.model()["name"]
         elif type == "cardIvl":
-            if c.type == 0:
+            if c.type == CARD_TYPE_NEW:
                 return _("(new)")
-            elif c.type == 1:
+            elif c.type == CARD_TYPE_LRN:
                 return _("(learning)")
             return self.col.backend.format_time_span(c.ivl * 86400)
         elif type == "cardEase":
-            if c.type == 0:
+            if c.type == CARD_TYPE_NEW:
                 return _("(new)")
             return "%d%%" % (c.factor / 10)
         elif type == "deck":
@@ -406,7 +406,7 @@ class StatusDelegate(QItemDelegate):
             col = theme_manager.qcolor(f"flag{c.userFlag()}-bg")
         elif c.note().hasTag("Marked"):
             col = theme_manager.qcolor("marked-bg")
-        elif c.queue == -1:
+        elif c.queue == QUEUE_TYPE_SUSPENDED:
             col = theme_manager.qcolor("suspended-bg")
         if col:
             brush = QBrush(col)
@@ -1933,7 +1933,7 @@ update cards set usn=?, mod=?, did=? where id in """
     ######################################################################
 
     def isSuspended(self):
-        return not not (self.card and self.card.queue == -1)
+        return not not (self.card and self.card.queue == QUEUE_TYPE_SUSPENDED)
 
     def onSuspend(self):
         self.editor.saveNow(self._onSuspend)