diff --git a/esphome/components/graphical_layout/text_panel.cpp b/esphome/components/graphical_layout/text_panel.cpp
index 9e1b7c4d2b..93437451f0 100644
--- a/esphome/components/graphical_layout/text_panel.cpp
+++ b/esphome/components/graphical_layout/text_panel.cpp
@@ -31,7 +31,7 @@ void TextPanel::dump_config(int indent_depth, int additional_level_depth) {
 
 void TextPanel::setup_complete() {
   if (!this->text_formatter_.has_value()) {
-    this->text_formatter_ = [this](const std::string string) { return string; };
+    this->text_formatter_ = [](const std::string& string) { return string; };
   }
 
   if (this->sensor_ != nullptr) {