diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49f8c88b..b3d04cfe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 
 * Stripped unnecessary whitespace from markdown templates
+* Renamed `lyft_validate` extension to `envoyproxy_validate`
+* Fixed `envoyproxy_validate` rules with slice values such as `in` and `not_in`
 
 ## [v1.3.1](https://github.com/pseudomuto/protoc-gen-doc/compare/v1.3.0...v1.3.1)
 
diff --git a/extensions/lyft_validate/lyft_validate.go b/extensions/envoyproxy_validate/envoyproxy_validate.go
similarity index 99%
rename from extensions/lyft_validate/lyft_validate.go
rename to extensions/envoyproxy_validate/envoyproxy_validate.go
index c5b83e57..70941f65 100644
--- a/extensions/lyft_validate/lyft_validate.go
+++ b/extensions/envoyproxy_validate/envoyproxy_validate.go
@@ -73,6 +73,7 @@ func flattenRules(prefix string, vv reflect.Value) (rules []ValidateRule) {
 		if vv.Len() == 0 {
 			return nil
 		}
+		fallthrough
 	default:
 		rules = append(rules, ValidateRule{Name: prefix, Value: vv.Interface()})
 	}
diff --git a/extensions/lyft_validate/lyft_validate_test.go b/extensions/envoyproxy_validate/envoyproxy_validate_test.go
similarity index 89%
rename from extensions/lyft_validate/lyft_validate_test.go
rename to extensions/envoyproxy_validate/envoyproxy_validate_test.go
index 3d5f3f10..7c6cae87 100644
--- a/extensions/lyft_validate/lyft_validate_test.go
+++ b/extensions/envoyproxy_validate/envoyproxy_validate_test.go
@@ -15,6 +15,7 @@ func TestTransform(t *testing.T) {
 		Type: &validate.FieldRules_String_{
 			String_: &validate.StringRules{
 				MinLen: proto.Uint64(1),
+				NotIn:  []string{"invalid"},
 			},
 		},
 	}
@@ -25,5 +26,6 @@ func TestTransform(t *testing.T) {
 	rules := transformed["validate.rules"].(ValidateExtension).Rules()
 	require.Equal(t, rules, []ValidateRule{
 		{Name: "string.min_len", Value: uint64(1)},
+		{Name: "string.not_in", Value: []string{"invalid"}},
 	})
 }
diff --git a/extensions/lyft_validate/alias.go b/extensions/lyft_validate/alias.go
new file mode 100644
index 00000000..985a0cf9
--- /dev/null
+++ b/extensions/lyft_validate/alias.go
@@ -0,0 +1,9 @@
+package extensions
+
+import evp "github.com/pseudomuto/protoc-gen-doc/extensions/envoyproxy_validate"
+
+// ValidateRule represents a single validator rule from the (validate.rules) method option extension.
+type ValidateRule = evp.ValidateRule
+
+// ValidateExtension contains the rules set by the (validate.rules) method option extension.
+type ValidateExtension = evp.ValidateExtension