diff --git a/variants/arduino_nano_33_ble/variant.h b/variants/arduino_nano_33_ble/variant.h
index 06cab2da..cb1a8d45 100644
--- a/variants/arduino_nano_33_ble/variant.h
+++ b/variants/arduino_nano_33_ble/variant.h
@@ -3,3 +3,11 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
+
+// TODO: correctly handle these legacy defines
+#define MOSI    11
+#define MISO    12
+#define SCK     13
+#define SS      10
+#define SDA     0
+#define SCL     0
\ No newline at end of file
diff --git a/variants/arduino_nano_33_ble_sense/variant.h b/variants/arduino_nano_33_ble_sense/variant.h
index 06cab2da..cb1a8d45 100644
--- a/variants/arduino_nano_33_ble_sense/variant.h
+++ b/variants/arduino_nano_33_ble_sense/variant.h
@@ -3,3 +3,11 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
+
+// TODO: correctly handle these legacy defines
+#define MOSI    11
+#define MISO    12
+#define SCK     13
+#define SS      10
+#define SDA     0
+#define SCL     0
\ No newline at end of file
diff --git a/variants/arduino_nano_33_iot/variant.h b/variants/arduino_nano_33_iot/variant.h
index 06cab2da..cb1a8d45 100644
--- a/variants/arduino_nano_33_iot/variant.h
+++ b/variants/arduino_nano_33_iot/variant.h
@@ -3,3 +3,11 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
+
+// TODO: correctly handle these legacy defines
+#define MOSI    11
+#define MISO    12
+#define SCK     13
+#define SS      10
+#define SDA     0
+#define SCL     0
\ No newline at end of file