diff --git a/1.Basics.md b/1.Basics.md
index a88857b..daa3480 100644
--- a/1.Basics.md
+++ b/1.Basics.md
@@ -12,7 +12,7 @@
 
 ```javascript
 // Hello world! 
-// This is comment
+// This is a comment
 
 function setup() {
   createCanvas(400, 400);