diff --git a/qutebrowser/completion/completionwidget.py b/qutebrowser/completion/completionwidget.py
index 6e1e51680..39fe16e86 100644
--- a/qutebrowser/completion/completionwidget.py
+++ b/qutebrowser/completion/completionwidget.py
@@ -297,6 +297,7 @@ class CompletionView(QTreeView):
         self.pattern = pattern
         with debug.log_time(log.completion, 'Set pattern {}'.format(pattern)):
             self.model().set_pattern(pattern)
+            self.selectionModel().clear()
             self._maybe_update_geometry()
             self._maybe_show()
 
diff --git a/tests/unit/completion/test_completionwidget.py b/tests/unit/completion/test_completionwidget.py
index 207e557a8..22d150fd8 100644
--- a/tests/unit/completion/test_completionwidget.py
+++ b/tests/unit/completion/test_completionwidget.py
@@ -87,6 +87,7 @@ def test_set_pattern(completionview):
     completionview.set_model(model)
     completionview.set_pattern('foo')
     model.set_pattern.assert_called_with('foo')
+    assert not completionview.selectionModel().currentIndex().isValid()
 
 
 def test_set_pattern_no_model(completionview):