diff --git a/config/config.go b/config/config.go
index 736e6234..573187c4 100644
--- a/config/config.go
+++ b/config/config.go
@@ -314,7 +314,7 @@ func (c *NotificationConfig) UnmarshalYAML(unmarshal func(interface{}) error) er
 
 // Regexp encapsulates a regexp.Regexp and makes it YAML marshallable.
 type Regexp struct {
-	regexp.Regexp
+	*regexp.Regexp
 }
 
 // UnmarshalYAML implements the yaml.Unmarshaler interface.
@@ -327,7 +327,7 @@ func (re *Regexp) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	if err != nil {
 		return err
 	}
-	re.Regexp = *regex
+	re.Regexp = regex
 	return nil
 }
 
diff --git a/dispatch_test.go b/dispatch_test.go
index e8d40969..915121d9 100644
--- a/dispatch_test.go
+++ b/dispatch_test.go
@@ -90,7 +90,7 @@ func TestAggrGroup(t *testing.T) {
 			t.Errorf("wrong repeat interval: %q", ri)
 		}
 		if sr, ok := notify.SendResolved(ctx); !ok || sr != opts.SendResolved {
-			t.Errorf("wrong send_resolved: %q", sr)
+			t.Errorf("wrong send_resolved: %v", sr)
 		}
 
 		last = current
diff --git a/notify/notify.go b/notify/notify.go
index 326d8443..6a524bac 100644
--- a/notify/notify.go
+++ b/notify/notify.go
@@ -167,8 +167,6 @@ func (n *RetryNotifier) Notify(ctx context.Context, alerts ...*types.Alert) erro
 			return ctx.Err()
 		}
 	}
-
-	return nil
 }
 
 type DedupingNotifier struct {
diff --git a/notify/notify_test.go b/notify/notify_test.go
index b034e580..e03a9e29 100644
--- a/notify/notify_test.go
+++ b/notify/notify_test.go
@@ -155,7 +155,7 @@ func TestDedupingNotifier(t *testing.T) {
 	// After a failing notify the notifies data must be unchanged.
 	nsCur, err := notifies.Get("name", fps...)
 	if err != nil {
-		t.Fatalf("Error getting notifies", err)
+		t.Fatalf("Error getting notifies: %s", err)
 	}
 	if !reflect.DeepEqual(nsBefore, nsCur) {
 		t.Fatalf("Notifies data has changed unexpectedly")
@@ -220,7 +220,7 @@ func TestDedupingNotifier(t *testing.T) {
 	}
 	nsCur, err = notifies.Get("name", fps...)
 	if err != nil {
-		t.Fatalf("Error getting notifies", err)
+		t.Fatalf("Error getting notifies: %s", err)
 	}
 
 	// Hack correct timestamps back in if they are sane.
diff --git a/types/match.go b/types/match.go
index 18767a70..c3aaecaf 100644
--- a/types/match.go
+++ b/types/match.go
@@ -110,7 +110,7 @@ func (ms Matchers) Fingerprint() model.Fingerprint {
 	lset := make(model.LabelSet, 3*len(ms))
 
 	for _, m := range ms {
-		lset[model.LabelName(fmt.Sprintf("%s-%s-%s", m.Name, m.Value, m.isRegex))] = ""
+		lset[model.LabelName(fmt.Sprintf("%s-%s-%v", m.Name, m.Value, m.isRegex))] = ""
 	}
 
 	return lset.Fingerprint()