diff --git a/components/opentherm/opentherm.c b/components/opentherm/opentherm.c
index 3a283d3..40c5298 100644
--- a/components/opentherm/opentherm.c
+++ b/components/opentherm/opentherm.c
@@ -507,7 +507,7 @@ bool esp_ot_send_request_async(unsigned long request)
     esp_ot_send_bit(1); // start bit
     for (int i = 31; i >= 0; i--)
     {
-        esp_ot_send_bit(bitRead(request, i));
+        esp_ot_send_bit(ESP_OT_BIT_READ(request, i));
     }
     esp_ot_send_bit(1); // stop bit
     esp_ot_set_idle_state();
@@ -818,7 +818,7 @@ bool esp_ot_send_response(unsigned long request)
     esp_ot_send_bit(1); // start bit
     for (int i = 31; i >= 0; i--)
     {
-        esp_ot_send_bit(bitRead(request, i));
+        esp_ot_send_bit(ESP_OT_BIT_READ(request, i));
     }
     esp_ot_send_bit(1); // stop bit
     esp_ot_set_idle_state();
diff --git a/components/opentherm/opentherm.h b/components/opentherm/opentherm.h
index ca2c645..2ec467c 100644
--- a/components/opentherm/opentherm.h
+++ b/components/opentherm/opentherm.h
@@ -15,9 +15,9 @@ static portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED;
 #define PORT_ENTER_CRITICAL portENTER_CRITICAL(&mux)
 #define PORT_EXIT_CRITICAL portEXIT_CRITICAL(&mux)
 
-#ifndef bit
-#define bit(b) (1UL << (b))
-#define bitRead(value, bit) ((value >> bit) & 0x01)
+#ifndef ESP_OT_BIT
+#define ESP_OT_BIT(b) (1UL << (b))
+#define ESP_OT_BIT_READ(value, ESP_OT_BIT) ((value >> ESP_OT_BIT) & 0x01)
 #endif
 
 // ENUMS