diff --git a/esphome/components/lvgl/lvgl_esphome.h b/esphome/components/lvgl/lvgl_esphome.h
index 4a4c11d383..2caad9392a 100644
--- a/esphome/components/lvgl/lvgl_esphome.h
+++ b/esphome/components/lvgl/lvgl_esphome.h
@@ -270,10 +270,10 @@ class LvglComponent : public PollingComponent {
 
 class IdleTrigger : public Trigger<> {
  public:
-  explicit IdleTrigger(LvglComponent *parent, TemplatableValue<uint32_t> timeout);
+  explicit IdleTrigger(LvglComponent *parent, TemplatableFn<uint32_t> timeout);
 
  protected:
-  TemplatableValue<uint32_t> timeout_;
+  TemplatableFn<uint32_t> timeout_;
   bool is_idle_{};
 };