diff --git a/README.md b/README.md
index 8921482..40e84a7 100644
--- a/README.md
+++ b/README.md
@@ -261,7 +261,7 @@ os.listdir("/")
 print( open("/boot.py").read() )
 
 # Write to a file. Deletes existing content.
-f = open("data.txt", "a")
+f = open("data.txt", "w")
 f.write("Hello ")
 f.close()