diff --git a/examples/gizmo_eink_simpletest.py b/examples/gizmo_eink_simpletest.py
index 2800d47..3392c64 100644
--- a/examples/gizmo_eink_simpletest.py
+++ b/examples/gizmo_eink_simpletest.py
@@ -13,19 +13,18 @@
 display_group = displayio.Group()
 
 # Display a ruler graphic from the root directory of the CIRCUITPY drive
-file = open("/display-ruler.bmp", "rb")
+with open("/display-ruler.bmp", "rb") as file:
+    picture = displayio.OnDiskBitmap(file)
+    # Create a Tilegrid with the bitmap and put in the displayio group
+    sprite = displayio.TileGrid(picture, pixel_shader=displayio.ColorConverter())
+    display_group.append(sprite)
 
-picture = displayio.OnDiskBitmap(file)
-# Create a Tilegrid with the bitmap and put in the displayio group
-sprite = displayio.TileGrid(picture, pixel_shader=displayio.ColorConverter())
-display_group.append(sprite)
+    # Place the display group on the screen
+    display.show(display_group)
 
-# Place the display group on the screen
-display.show(display_group)
+    # Refresh the display to have it actually show the image
+    # NOTE: Do not refresh eInk displays sooner than 180 seconds
+    display.refresh()
+    print("refreshed")
 
-# Refresh the display to have it actually show the image
-# NOTE: Do not refresh eInk displays sooner than 180 seconds
-display.refresh()
-print("refreshed")
-
-time.sleep(180)
+    time.sleep(180)