diff --git a/esphome/components/external_eeprom/external_eeprom.cpp b/esphome/components/external_eeprom/external_eeprom.cpp
index 39a0f06479..c42a87f1c5 100644
--- a/esphome/components/external_eeprom/external_eeprom.cpp
+++ b/esphome/components/external_eeprom/external_eeprom.cpp
@@ -433,7 +433,7 @@ void ExtEepromComponent::set_page_write_time_(uint8_t write_time_ms) { memory_pa
 uint8_t ExtEepromComponent::get_page_write_time_() { return memory_page_write_time_ms_; }
 /// @brief Set address_bytes for the device
 /// @param address_bytes contains the number of bytes the device uses for address
-void ExtEepromComponent::set_address_size_bytes_(uint8_t address_bytes) { this->address_size_bytes_ = address_bytes; }
+void ExtEepromComponent::set_address_size_bytes_(uint8_t address_size_bytes) { this->address_size_bytes_ = address_size_bytes; }
 /// @brief Gets the number of bytes used for the address
 /// @return size in bytes
 uint8_t ExtEepromComponent::get_address_size_bytes_() { return this->address_size_bytes_; }