diff --git a/esphome/components/remote_base/abbwelcome_protocol.h b/esphome/components/remote_base/abbwelcome_protocol.h
index 307fa7bc1a1..1dddedf8ce1 100644
--- a/esphome/components/remote_base/abbwelcome_protocol.h
+++ b/esphome/components/remote_base/abbwelcome_protocol.h
@@ -136,7 +136,7 @@ class ABBWelcomeData {
     this->data_[1] = 0xff;
     this->data_[this->size() - 1] = this->calc_cs_();
   }
-  // Buffer size: raw_hex(80) + space(1) + type_info(27) + data(52) + null(1) = 161, rounded up
+  // Buffer size: max raw hex output (27*3-1=80) + space(1) + type_info(27) + data(52) + null(1) = 161, rounded up
   static constexpr size_t FORMAT_BUFFER_SIZE = 192;
 
   template<size_t N> char *format_to(char (&buffer)[N], uint8_t max_print_bytes = 255) const {