diff --git a/esphome/components/gp8211/gp8211.cpp b/esphome/components/gp8211/gp8211.cpp
index cd248b7e13..45645b0cc5 100644
--- a/esphome/components/gp8211/gp8211.cpp
+++ b/esphome/components/gp8211/gp8211.cpp
@@ -9,7 +9,7 @@ static const char *const TAG = "gp8211";
 static const uint8_t RANGE_REGISTER = 0x01;
 
 void GP8211::setup() {
-  this->write_register(RANGE_REGISTER, reinterpret_cast<uint8_t*>(&this->voltage_), sizeof(this->voltage_));
+  this->write_register(RANGE_REGISTER, reinterpret_cast<uint8_t *>(&this->voltage_), sizeof(this->voltage_));
 }
 
 void GP8211::dump_config() {