diff --git a/esphome/components/text_sensor/text_sensor.cpp b/esphome/components/text_sensor/text_sensor.cpp
index ea5665dcb0..6789b13dc4 100644
--- a/esphome/components/text_sensor/text_sensor.cpp
+++ b/esphome/components/text_sensor/text_sensor.cpp
@@ -74,7 +74,7 @@ void TextSensor::clear_filters() {
 void TextSensor::add_on_state_callback(std::function<void(const std::string &)> callback) {
   this->callbacks_.add_second(std::move(callback));
 }
-void TextSensor::add_on_raw_state_callback(std::function<void(std::string)> callback) {
+void TextSensor::add_on_raw_state_callback(std::function<void(const std::string &)> callback) {
   this->raw_callback_.add(std::move(callback));
 }