diff --git a/cmd/protoc-gen-openapi/converter/converter.go b/cmd/protoc-gen-openapi/converter/converter.go
index fe82b701..5680ad3f 100644
--- a/cmd/protoc-gen-openapi/converter/converter.go
+++ b/cmd/protoc-gen-openapi/converter/converter.go
@@ -19,7 +19,7 @@ import (
 // Converter is everything you need to convert Micro protos into an OpenAPI spec:
 type Converter struct {
 	microServiceName string
-	openAPISpec      *openapi3.Swagger
+	openAPISpec      *openapi3.T
 	sourceInfo       *sourceCodeInfo
 	req              *plugin.CodeGeneratorRequest
 	plug             *prot.Plugin
diff --git a/cmd/protoc-gen-openapi/converter/default_openapi_spec.go b/cmd/protoc-gen-openapi/converter/default_openapi_spec.go
index deea5c74..5389ba9a 100644
--- a/cmd/protoc-gen-openapi/converter/default_openapi_spec.go
+++ b/cmd/protoc-gen-openapi/converter/default_openapi_spec.go
@@ -9,7 +9,7 @@ import (
 func (c *Converter) defaultSpec() {
 
 	// Spec ready to take schemas:
-	c.openAPISpec = &openapi3.Swagger{
+	c.openAPISpec = &openapi3.T{
 		Components: openapi3.Components{
 			RequestBodies:   make(map[string]*openapi3.RequestBodyRef),
 			Responses:       make(map[string]*openapi3.ResponseRef),