diff --git a/constraints/constraints_test.go b/constraints/constraints_test.go
index 3f7b84396ff..9e59e6f751f 100644
--- a/constraints/constraints_test.go
+++ b/constraints/constraints_test.go
@@ -7,7 +7,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"strings"
-	"testing"
 
 	jc "github.com/juju/testing/checkers"
 	gc "gopkg.in/check.v1"
@@ -17,10 +16,6 @@ import (
 	"github.com/juju/juju/instance"
 )
 
-func TestPackage(t *testing.T) {
-	gc.TestingT(t)
-}
-
 type ConstraintsSuite struct{}
 
 var _ = gc.Suite(&ConstraintsSuite{})
diff --git a/constraints/package_test.go b/constraints/package_test.go
new file mode 100644
index 00000000000..de168734bb3
--- /dev/null
+++ b/constraints/package_test.go
@@ -0,0 +1,14 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the AGPLv3, see LICENCE file for details.
+
+package constraints_test
+
+import (
+	"testing"
+
+	gc "gopkg.in/check.v1"
+)
+
+func TestPackage(t *testing.T) {
+	gc.TestingT(t)
+}