diff --git a/collector/suite_test.go b/collector/suite_test.go
index <HASH>..<HASH> 100644
--- a/collector/suite_test.go
+++ b/collector/suite_test.go
@@ -43,4 +43,5 @@ func (s *S) TearDownSuite(c *C) {
 func (s *S) TearDownTest(c *C) {
 	_, err := db.Session.Apps().RemoveAll(nil)
 	c.Assert(err, IsNil)
+	s.provisioner.Reset()
 }
collector/tests: Reset FakeProvisioner on TearDownTest