diff --git a/esphome/components/prometheus/prometheus_handler.cpp b/esphome/components/prometheus/prometheus_handler.cpp
index 6e74b83916..b14dc19f76 100644
--- a/esphome/components/prometheus/prometheus_handler.cpp
+++ b/esphome/components/prometheus/prometheus_handler.cpp
@@ -842,7 +842,7 @@ void PrometheusHandler::climate_type_(AsyncResponseStream *stream) {
 
 void PrometheusHandler::climate_setting_row_(AsyncResponseStream *stream, climate::Climate *obj, std::string &area,
                                              std::string &node, std::string &friendly_name, std::string &setting,
-                                             const LogString &setting_value) {
+                                             const LogString *setting_value) {
   stream->print(F("esphome_climate_setting{id=\""));
   stream->print(relabel_id_(obj).c_str());
   add_area_label_(stream, area);
diff --git a/esphome/components/prometheus/prometheus_handler.h b/esphome/components/prometheus/prometheus_handler.h
index 555b1b210e..41431ddb0e 100644
--- a/esphome/components/prometheus/prometheus_handler.h
+++ b/esphome/components/prometheus/prometheus_handler.h
@@ -179,7 +179,7 @@ class PrometheusHandler : public AsyncWebHandler, public Component {
   void climate_row_(AsyncResponseStream *stream, climate::Climate *obj, std::string &area, std::string &node,
                     std::string &friendly_name);
   void climate_setting_row_(AsyncResponseStream *stream, climate::Climate *obj, std::string &area, std::string &node,
-                            std::string &friendly_name, std::string &setting, const LogString &setting_value);
+                            std::string &friendly_name, std::string &setting, const LogString *setting_value);
   void climate_value_row_(AsyncResponseStream *stream, climate::Climate *obj, std::string &area, std::string &node,
                           std::string &friendly_name, std::string &category, std::string &climate_value);
 #endif