diff --git a/subjects/displayz/README.md b/subjects/displayz/README.md
index 621bdb67..efe036b7 100644
--- a/subjects/displayz/README.md
+++ b/subjects/displayz/README.md
@@ -4,7 +4,7 @@
 
 Write a program that takes a `string`, and displays the first `z` character it encounters in it, followed by a newline (`'\n'`).
 If there are no `z` characters in the string, the program just writes `z` followed by a newline (`'\n'`).
-If the number of arguments is not 1, the program displays an `z` followed by a newline (`'\n'`).
+If the number of arguments is not 1, the program displays a `z` followed by a newline (`'\n'`).
 
 ### Usage