diff --git a/esphome/components/api/api_frame_helper.h b/esphome/components/api/api_frame_helper.h
index f98a6f8928..3184250e8c 100644
--- a/esphome/components/api/api_frame_helper.h
+++ b/esphome/components/api/api_frame_helper.h
@@ -80,7 +80,7 @@ class APIFrameHelper {
   virtual APIError init() = 0;
   virtual APIError loop();
   virtual APIError read_packet(ReadPacketBuffer *buffer) = 0;
-  bool can_write_without_blocking() { return state_ == State::DATA && tx_buf_count_ == 0; }
+  bool can_write_without_blocking() { return this->state_ == State::DATA && this->tx_buf_count_ == 0; }
   std::string getpeername() { return socket_->getpeername(); }
   int getpeername(struct sockaddr *addr, socklen_t *addrlen) { return socket_->getpeername(addr, addrlen); }
   APIError close() {