diff --git a/.travis.yml b/.travis.yml
index 3ff54ea..e9bca4e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,9 +2,9 @@ sudo: false
 language: go
 
 go:
-- 1.7.x
-- 1.8.x
-- 1.9.x
+ - 1.7.x
+ - 1.8.x
+ - 1.9.x
 
 script:
  - go test -short ./...
diff --git a/api/prometheus/v1/api.go b/api/prometheus/v1/api.go
index 3d37437..c41c0cf 100644
--- a/api/prometheus/v1/api.go
+++ b/api/prometheus/v1/api.go
@@ -131,9 +131,6 @@ type ConfigResult struct {
 // FlagsResult contains the result from querying the flag endpoint.
 type FlagsResult map[string]string
 
-// Flags models a set of flags that Prometheus is configured with.
-type Flags map[string]string
-
 // SnapshotResult contains the result from querying the snapshot endpoint.
 type SnapshotResult struct {
 	Name string `json:"name"`