diff --git a/_tour/lower-type-bounds.md b/_tour/lower-type-bounds.md
index 1c422d82d5..ae21c6a4b4 100644
--- a/_tour/lower-type-bounds.md
+++ b/_tour/lower-type-bounds.md
@@ -18,7 +18,7 @@ While [upper type bounds](upper-type-bounds.html) limit a type to a subtype of a
 
 Here is an example where this is useful:
 
-```tut:fail
+```tut
 trait Node[+B] {
   def prepend(elem: B): Unit
 }
diff --git a/_tour/self-types.md b/_tour/self-types.md
index 16d29516be..fb357f7151 100644
--- a/_tour/self-types.md
+++ b/_tour/self-types.md
@@ -24,12 +24,12 @@ trait User {
 }
 
 trait Tweeter {
-	this: User =>  // reassign this
-	def tweet(tweetText: String) = println(s"$username: $tweetText")
+  this: User =>  // reassign this
+  def tweet(tweetText: String) = println(s"$username: $tweetText")
 }
 
 class VerifiedTweeter(val username_ : String) extends Tweeter with User {  // We mixin User because Tweeter required it
-	def username = s"real $username_"
+  def username = s"real $username_"
 }
 
 val realBeyoncé = new VerifiedTweeter("Beyoncé")