diff --git a/src/panels/developer-tools/action/developer-tools-action.ts b/src/panels/developer-tools/action/developer-tools-action.ts
index 979c653ffc1f..2bdf4d0880ba 100644
--- a/src/panels/developer-tools/action/developer-tools-action.ts
+++ b/src/panels/developer-tools/action/developer-tools-action.ts
@@ -298,7 +298,7 @@ class HaPanelDevAction extends LitElement {
                       <td>
                         ${this.hass.localize(
                           `component.${domain}.services.${serviceName}.fields.${field.key}.example`
-                        ) || field.example}
+                        ) || JSON.stringify(field.example)}
                       </td>
                     </tr>`
                 )}