diff --git a/ports/esp32s2/supervisor/esp_port.h b/ports/esp32s2/supervisor/esp_port.h
new file mode 100644
index 0000000000..1164666cda
--- /dev/null
+++ b/ports/esp32s2/supervisor/esp_port.h
@@ -0,0 +1,35 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_ESP32S2_SUPERVISOR_PORT_H
+#define MICROPY_INCLUDED_ESP32S2_SUPERVISOR_PORT_H
+
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+extern TaskHandle_t sleeping_circuitpython_task;
+
+#endif // MICROPY_INCLUDED_ESP32S2_SUPERVISOR_PORT_H
diff --git a/ports/esp32s2/supervisor/port.c b/ports/esp32s2/supervisor/port.c
index 4b9a4f7eff..0ac2236d31 100644
--- a/ports/esp32s2/supervisor/port.c
+++ b/ports/esp32s2/supervisor/port.c
@@ -31,6 +31,7 @@
 #include "boards/board.h"
 #include "modules/module.h"
 #include "py/runtime.h"
+#include "supervisor/esp_port.h"
 
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
@@ -55,7 +56,7 @@
 
 uint32_t* heap;
 uint32_t heap_size;
-extern TaskHandle_t sleeping_circuitpython_task;
+
 STATIC esp_timer_handle_t _tick_timer;
 
 extern void esp_restart(void) NORETURN;