diff --git a/nim.html.markdown b/nim.html.markdown
index 81662630..e3c749dc 100644
--- a/nim.html.markdown
+++ b/nim.html.markdown
@@ -188,7 +188,7 @@ echo "I'm thinking of a number between 41 and 43. Guess which!"
 let number: int = 42
 var
   raw_guess: string
-  guess: int
+  guess: int # Variables in Nim are always initialized with a zero value
 while guess != number:
   raw_guess = readLine(stdin)
   if raw_guess == "": continue # Skip this iteration