diff --git a/esphome/components/mcp4461/mcp4461.h b/esphome/components/mcp4461/mcp4461.h
index 8da55b76af..d07958a478 100644
--- a/esphome/components/mcp4461/mcp4461.h
+++ b/esphome/components/mcp4461/mcp4461.h
@@ -87,6 +87,7 @@ class Mcp4461Component : public Component, public i2c::I2CDevice {
 
  protected:
   friend class Mcp4461Wiper;
+  void set_write_protection_status_();
   bool is_writing_();
   bool is_eeprom_busy_();
   uint8_t get_wiper_address_(uint8_t wiper);