diff --git a/rules/manager.go b/rules/manager.go
index befcaa2f7..9462fb21f 100644
--- a/rules/manager.go
+++ b/rules/manager.go
@@ -73,6 +73,20 @@ func init() {
 	prometheus.MustRegister(evalDuration)
 }
 
+// A Rule encapsulates a vector expression which is evaluated at a specified
+// interval and acted upon (currently either recorded or used for alerting).
+type Rule interface {
+	// Name returns the name of the rule.
+	Name() string
+	// Eval evaluates the rule, including any associated recording or alerting actions.
+	eval(clientmodel.Timestamp, *promql.Engine) (promql.Vector, error)
+	// String returns a human-readable string representation of the rule.
+	String() string
+	// HTMLSnippet returns a human-readable string representation of the rule,
+	// decorated with HTML elements for use the web frontend.
+	HTMLSnippet(pathPrefix string) template.HTML
+}
+
 // The Manager manages recording and alerting rules.
 type Manager struct {
 	// Protects the rules list.
diff --git a/rules/rules_test.go b/rules/manager_test.go
similarity index 100%
rename from rules/rules_test.go
rename to rules/manager_test.go
diff --git a/rules/rules.go b/rules/rules.go
deleted file mode 100644
index 5d3a9cc6d..000000000
--- a/rules/rules.go
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright 2013 The Prometheus Authors
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package rules
-
-import (
-	"html/template"
-
-	clientmodel "github.com/prometheus/client_golang/model"
-
-	"github.com/prometheus/prometheus/promql"
-)
-
-// A Rule encapsulates a vector expression which is evaluated at a specified
-// interval and acted upon (currently either recorded or used for alerting).
-type Rule interface {
-	// Name returns the name of the rule.
-	Name() string
-	// Eval evaluates the rule, including any associated recording or alerting actions.
-	eval(clientmodel.Timestamp, *promql.Engine) (promql.Vector, error)
-	// String returns a human-readable string representation of the rule.
-	String() string
-	// HTMLSnippet returns a human-readable string representation of the rule,
-	// decorated with HTML elements for use the web frontend.
-	HTMLSnippet(pathPrefix string) template.HTML
-}