diff --git a/esphome/components/mpr121/mpr121.h b/esphome/components/mpr121/mpr121.h
index 9948f4701c..e68595948a 100644
--- a/esphome/components/mpr121/mpr121.h
+++ b/esphome/components/mpr121/mpr121.h
@@ -51,14 +51,14 @@ class MPR121Channel : public binary_sensor::BinarySensor {
   void process(uint16_t data) { this->publish_state(static_cast<bool>(data & (1 << this->channel_))); }
   int get_channel() { return this->channel_; };
   void set_touch_threshold(uint8_t touch_threshold) { this->touch_threshold_ = touch_threshold; };
-  void set_release_threshold(uint8_t release_threshold) { this->release_threshold = release_threshold; };
+  void set_release_threshold(uint8_t release_threshold) { this->release_threshold_ = release_threshold; };
   uint8_t get_touch_threshold() { return this->touch_threshold_; };
-  uint8_t get_release_threshold() { return this->release_threshold; };
+  uint8_t get_release_threshold() { return this->release_threshold_; };
 
  protected:
   uint8_t channel_{0};
   uint8_t touch_threshold_{12};
-  uint8_t release_threshold{6};
+  uint8_t release_threshold_{6};
 };
 
 class MPR121Component : public Component, public i2c::I2CDevice {