diff --git a/Introducing_Trinket_M0/Trinket_SDCardList/code.py b/Introducing_Trinket_M0/Trinket_SDCardList/code.py
index c663efc1c..2c4020643 100644
--- a/Introducing_Trinket_M0/Trinket_SDCardList/code.py
+++ b/Introducing_Trinket_M0/Trinket_SDCardList/code.py
@@ -28,7 +28,7 @@ storage.mount(vfs, "/sd")
 
 def print_directory(path, tabs=0):
     for file in os.listdir(path):
-        if file == "?": 
+        if file == "?":
             continue  # Issue noted in Learn
         stats = os.stat(path + "/" + file)
         filesize = stats[6]