diff --git a/esphome/components/binary_sensor/filter.h b/esphome/components/binary_sensor/filter.h
index 6887de35e1d..bb974fe1322 100644
--- a/esphome/components/binary_sensor/filter.h
+++ b/esphome/components/binary_sensor/filter.h
@@ -53,6 +53,9 @@ class DelayedOnOffFilter final : public Filter {
 
 class DelayedOnFilter : public Filter {
  public:
+  // User provided, not "= default": `new(p) DelayedOnFilter()` would zero-fill .bss that is already zero.
+  DelayedOnFilter() {}
+
   optional<bool> new_value(bool value) override;
 
   template<typename T> void set_delay(T delay) { this->delay_ = delay; }