diff --git a/anki/find.py b/anki/find.py
index d6e4727cc..a53a0286b 100644
--- a/anki/find.py
+++ b/anki/find.py
@@ -107,6 +107,7 @@ class Finder(object):
                     s['q'] += " and "
             if s['isnot']:
                 s['q'] += " not "
+                s['isnot'] = False
             if wrap:
                 txt = "(" + txt + ")"
             s['q'] += txt
diff --git a/tests/test_find.py b/tests/test_find.py
index 27578a79c..af8ebbace 100644
--- a/tests/test_find.py
+++ b/tests/test_find.py
@@ -199,6 +199,7 @@ def test_findCards():
     # OR searches and nesting
     assert len(deck.findCards("tag:monkey or tag:sheep")) == 2
     assert len(deck.findCards("(tag:monkey OR tag:sheep)")) == 2
+    assert len(deck.findCards("-(tag:monkey OR tag:sheep)")) == 6
     assert len(deck.findCards("tag:monkey or (tag:sheep sheep)")) == 2
     assert len(deck.findCards("tag:monkey or (tag:sheep octopus)")) == 1