diff --git a/ev3dev2/_platform/pistorms.py b/ev3dev2/_platform/pistorms.py
index 1dfa0b2..8653549 100644
--- a/ev3dev2/_platform/pistorms.py
+++ b/ev3dev2/_platform/pistorms.py
@@ -2,6 +2,13 @@
 An assortment of classes modeling specific features of the PiStorms.
 """
 from collections import OrderedDict
+from evdev import InputDevice, list_devices
+
+def find_filename(device_name):
+    for path in list_devices():
+        dev = InputDevice(path)
+        if device_name in dev.name:
+            return dev.fn
 
 OUTPUT_A = 'pistorms:BAM1'
 OUTPUT_B = 'pistorms:BAM2'
@@ -13,8 +20,8 @@
 INPUT_3 = 'pistorms:BBS1'
 INPUT_4 = 'pistorms:BBS2'
 
-BUTTONS_FILENAME = '/dev/input/by-path/platform-3f804000.i2c-event'
 EVDEV_DEVICE_NAME = 'PiStorms'
+BUTTONS_FILENAME = find_filename(EVDEV_DEVICE_NAME)
 
 LEDS = OrderedDict()
 LEDS['red_left'] = 'pistorms:BB:red:brick-status'
@@ -38,3 +45,5 @@
 LED_COLORS['MAGENTA'] = (1, 0, 1)
 
 LED_DEFAULT_COLOR = 'GREEN'
+
+