diff --git a/qutebrowser/models/completionfilter.py b/qutebrowser/models/completionfilter.py
index c5a7bd954..6052bb045 100644
--- a/qutebrowser/models/completionfilter.py
+++ b/qutebrowser/models/completionfilter.py
@@ -31,13 +31,13 @@ class CompletionFilterModel(QSortFilterProxyModel):
 
     Attributes:
         _pattern: The pattern to filter with, used in pattern property.
-        srcmodel: The source model.
+        _srcmodel: The source model, accessed via the srcmodel property.
 
     """
 
     def __init__(self, parent=None):
         super().__init__(parent)
-        self.srcmodel = None
+        self._srcmodel = None
         self._pattern = ''
 
     @property
@@ -65,7 +65,13 @@ class CompletionFilterModel(QSortFilterProxyModel):
                 self.sort(sortcol)
             self.invalidate()
 
-    def setsrc(self, model):
+    @property
+    def srcmodel(self):
+        """Getter for srcmodel."""
+        return self._srcmodel
+
+    @srcmodel.setter
+    def srcmodel(self, model):
         """Set a new source model and clear the pattern.
 
         model -- The new source model.
@@ -73,7 +79,7 @@ class CompletionFilterModel(QSortFilterProxyModel):
         """
         # FIXME change this to a property
         self.setSourceModel(model)
-        self.srcmodel = model
+        self._srcmodel = model
         self.pattern = ''
 
     def first_item(self):
diff --git a/qutebrowser/widgets/completion.py b/qutebrowser/widgets/completion.py
index e0cd87c58..9035f7569 100644
--- a/qutebrowser/widgets/completion.py
+++ b/qutebrowser/widgets/completion.py
@@ -129,7 +129,7 @@ class CompletionView(QTreeView):
         model -- A QAbstractItemModel with available completions.
 
         """
-        self.model.setsrc(self._completion_models[model])
+        self.model.srcmodel = self._completion_models[model]
         self.expandAll()
         self.resizeColumnToContents(0)