diff --git a/internal/cmd/testdata/success_nodejs.golden b/internal/cmd/testdata/success_nodejs.golden
index fac642b..c390dd7 100644
--- a/internal/cmd/testdata/success_nodejs.golden
+++ b/internal/cmd/testdata/success_nodejs.golden
@@ -121,7 +121,7 @@ export interface GeneratedClient {
   * 
   * **Details:**
   * - flag key: `themeCustomization`
-  * - default value: `map[primaryColor:#007bff secondaryColor:#6c757d]`
+  * - default value: `{"primaryColor":"#007bff","secondaryColor":"#6c757d"}`
   * - type: `object`
   * 
   * Performs a flag evaluation that a returns an evaluation details object.
diff --git a/internal/generators/nodejs/nodejs.tmpl b/internal/generators/nodejs/nodejs.tmpl
index 1df7c46..cbfb2e9 100644
--- a/internal/generators/nodejs/nodejs.tmpl
+++ b/internal/generators/nodejs/nodejs.tmpl
@@ -32,7 +32,7 @@ export interface GeneratedClient {
   * 
   * **Details:**
   * - flag key: `{{ .Key }}`
-  * - default value: `{{ .DefaultValue }}`
+  * - default value: `{{ if eq (.Type | OpenFeatureType) "object"}}{{ .DefaultValue | ToJSONString }}{{ else }}{{ .DefaultValue }}{{ end }}`
   * - type: `{{ .Type | OpenFeatureType }}`
   * 
   * Performs a flag evaluation that a returns an evaluation details object.