diff --git a/spec_builder_helper.go b/spec_builder_helper.go
index 4ec4961..e11cfc4 100644
--- a/spec_builder_helper.go
+++ b/spec_builder_helper.go
@@ -19,7 +19,6 @@ func (e *Engine) OpenAPISpecBuilder() *SpecBuilder {
 		Title:                   e.swaggerTitle,
 		Description:             e.swaggerDesc,
 		Version:                 e.swaggerVersion,
-		SwaggerPath:             e.swaggerPath,
 		TermsOfService:          e.swaggerTermsOfService,
 		ContactName:             e.swaggerContactName,
 		ContactURL:              e.swaggerContactURL,
@@ -31,6 +30,10 @@ func (e *Engine) OpenAPISpecBuilder() *SpecBuilder {
 		ExternalDocsURL:         e.swaggerExternalDocsURL,
 	}
 
+	if e.swaggerEnabled {
+		builder.SwaggerPath = resolveSwaggerPath(e.swaggerPath)
+	}
+
 	if e.graphql != nil {
 		builder.GraphQLPath = e.graphql.path
 		builder.GraphQLPlayground = e.graphql.playground
diff --git a/spec_builder_helper_test.go b/spec_builder_helper_test.go
index 1f71551..013fd4a 100644
--- a/spec_builder_helper_test.go
+++ b/spec_builder_helper_test.go
@@ -130,3 +130,27 @@ func TestEngine_Good_OpenAPISpecBuilderCarriesEngineMetadata(t *testing.T) {
 		t.Fatal("expected expvar path from engine metadata in generated spec")
 	}
 }
+
+func TestEngine_Good_OpenAPISpecBuilderExportsDefaultSwaggerPath(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+
+	e, err := api.New(api.WithSwagger("Engine API", "Engine metadata", "2.0.0"))
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	builder := e.OpenAPISpecBuilder()
+	data, err := builder.Build(nil)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	var spec map[string]any
+	if err := json.Unmarshal(data, &spec); err != nil {
+		t.Fatalf("invalid JSON: %v", err)
+	}
+
+	if got := spec["x-swagger-ui-path"]; got != "/swagger" {
+		t.Fatalf("expected default x-swagger-ui-path=/swagger, got %v", got)
+	}
+}