diff --git a/Marlin/src/HAL/HAL_TEENSY35_36/HAL_Teensy.h b/Marlin/src/HAL/HAL_TEENSY35_36/HAL_Teensy.h
index f4de615a6..b5dfb6080 100644
--- a/Marlin/src/HAL/HAL_TEENSY35_36/HAL_Teensy.h
+++ b/Marlin/src/HAL/HAL_TEENSY35_36/HAL_Teensy.h
@@ -30,6 +30,9 @@
 // Includes
 // --------------------------------------------------------------------------
 
+// _BV is re-defined in Arduino.h
+#undef _BV
+
 #include <Arduino.h>
 
 // Redefine sq macro defined by teensy3/wiring.h