diff --git a/src/main/scala/scalatutorial/sections/ClassesVsCaseClasses.scala b/src/main/scala/scalatutorial/sections/ClassesVsCaseClasses.scala
index 7a91afb0..69d9511a 100644
--- a/src/main/scala/scalatutorial/sections/ClassesVsCaseClasses.scala
+++ b/src/main/scala/scalatutorial/sections/ClassesVsCaseClasses.scala
@@ -5,7 +5,7 @@
 
 package scalatutorial.sections
 
-import scalatutorial.aux.{BankAccount, Note}
+import scalatutorial.utils.{BankAccount, Note}
 
 /** @param name classes_vs_case_classes */
 object ClassesVsCaseClasses extends ScalaTutorialSection {
diff --git a/src/main/scala/scalatutorial/sections/ImperativeProgramming.scala b/src/main/scala/scalatutorial/sections/ImperativeProgramming.scala
index d1b94d65..aa273211 100644
--- a/src/main/scala/scalatutorial/sections/ImperativeProgramming.scala
+++ b/src/main/scala/scalatutorial/sections/ImperativeProgramming.scala
@@ -5,7 +5,7 @@
 
 package scalatutorial.sections
 
-import scalatutorial.aux.BankAccount
+import scalatutorial.utils.BankAccount
 
 /** @param name imperative_programming */
 object ImperativeProgramming extends ScalaTutorialSection {
diff --git a/src/main/scala/scalatutorial/sections/ObjectOrientedProgramming.scala b/src/main/scala/scalatutorial/sections/ObjectOrientedProgramming.scala
index 49faf17e..c9df0a2b 100644
--- a/src/main/scala/scalatutorial/sections/ObjectOrientedProgramming.scala
+++ b/src/main/scala/scalatutorial/sections/ObjectOrientedProgramming.scala
@@ -5,7 +5,7 @@
 
 package scalatutorial.sections
 
-import scalatutorial.aux.{Empty, IntSet, NonEmpty}
+import scalatutorial.utils.{Empty, IntSet, NonEmpty}
 
 /** @param name object_oriented_programming */
 object ObjectOrientedProgramming extends ScalaTutorialSection {
diff --git a/src/main/scala/scalatutorial/sections/TypeClasses.scala b/src/main/scala/scalatutorial/sections/TypeClasses.scala
index 32b6553a..65e92759 100644
--- a/src/main/scala/scalatutorial/sections/TypeClasses.scala
+++ b/src/main/scala/scalatutorial/sections/TypeClasses.scala
@@ -5,8 +5,8 @@
 
 package scalatutorial.sections
 
-import scalatutorial.aux.Rational
-import scalatutorial.aux.Sorting.insertionSort
+import scalatutorial.utils.Rational
+import scalatutorial.utils.Sorting.insertionSort
 
 /** @param name type_classes */
 object TypeClasses extends ScalaTutorialSection {
diff --git a/src/main/scala/scalatutorial/aux/BankAccount.scala b/src/main/scala/scalatutorial/utils/BankAccount.scala
similarity index 93%
rename from src/main/scala/scalatutorial/aux/BankAccount.scala
rename to src/main/scala/scalatutorial/utils/BankAccount.scala
index 3ea8db08..48370fb7 100644
--- a/src/main/scala/scalatutorial/aux/BankAccount.scala
+++ b/src/main/scala/scalatutorial/utils/BankAccount.scala
@@ -3,7 +3,7 @@
  * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
  */
 
-package scalatutorial.aux
+package scalatutorial.utils
 
 class BankAccount {
 
diff --git a/src/main/scala/scalatutorial/aux/IntSet.scala b/src/main/scala/scalatutorial/utils/IntSet.scala
similarity index 96%
rename from src/main/scala/scalatutorial/aux/IntSet.scala
rename to src/main/scala/scalatutorial/utils/IntSet.scala
index 553bfafc..14219fda 100644
--- a/src/main/scala/scalatutorial/aux/IntSet.scala
+++ b/src/main/scala/scalatutorial/utils/IntSet.scala
@@ -3,7 +3,7 @@
  * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
  */
 
-package scalatutorial.aux
+package scalatutorial.utils
 
 abstract class IntSet {
   def incl(x: Int): IntSet
diff --git a/src/main/scala/scalatutorial/aux/Note.scala b/src/main/scala/scalatutorial/utils/Note.scala
similarity index 86%
rename from src/main/scala/scalatutorial/aux/Note.scala
rename to src/main/scala/scalatutorial/utils/Note.scala
index ff758832..9ad2914a 100644
--- a/src/main/scala/scalatutorial/aux/Note.scala
+++ b/src/main/scala/scalatutorial/utils/Note.scala
@@ -3,6 +3,6 @@
  * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
  */
 
-package scalatutorial.aux
+package scalatutorial.utils
 
 case class Note(name: String, duration: String, octave: Int)
diff --git a/src/main/scala/scalatutorial/aux/Rational.scala b/src/main/scala/scalatutorial/utils/Rational.scala
similarity index 92%
rename from src/main/scala/scalatutorial/aux/Rational.scala
rename to src/main/scala/scalatutorial/utils/Rational.scala
index e244ab4f..f1fbb2ae 100644
--- a/src/main/scala/scalatutorial/aux/Rational.scala
+++ b/src/main/scala/scalatutorial/utils/Rational.scala
@@ -3,7 +3,7 @@
  * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
  */
 
-package scalatutorial.aux
+package scalatutorial.utils
 
 class Rational(x: Int, y: Int) {
 
diff --git a/src/main/scala/scalatutorial/aux/animals.scala b/src/main/scala/scalatutorial/utils/animals.scala
similarity index 91%
rename from src/main/scala/scalatutorial/aux/animals.scala
rename to src/main/scala/scalatutorial/utils/animals.scala
index a4776ad6..d1c4593d 100644
--- a/src/main/scala/scalatutorial/aux/animals.scala
+++ b/src/main/scala/scalatutorial/utils/animals.scala
@@ -3,7 +3,7 @@
  * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
  */
 
-package scalatutorial.aux
+package scalatutorial.utils
 
 trait Animal {
   def fitness: Int
diff --git a/src/main/scala/scalatutorial/aux/sorting.scala b/src/main/scala/scalatutorial/utils/sorting.scala
similarity index 94%
rename from src/main/scala/scalatutorial/aux/sorting.scala
rename to src/main/scala/scalatutorial/utils/sorting.scala
index 14640aed..1abc5ebf 100644
--- a/src/main/scala/scalatutorial/aux/sorting.scala
+++ b/src/main/scala/scalatutorial/utils/sorting.scala
@@ -3,7 +3,7 @@
  * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
  */
 
-package scalatutorial.aux
+package scalatutorial.utils
 
 object Sorting {
 
diff --git a/src/test/scala/scalatutorial/sections/TypeClassesSpec.scala b/src/test/scala/scalatutorial/sections/TypeClassesSpec.scala
index cf5a2a8d..12a5b576 100644
--- a/src/test/scala/scalatutorial/sections/TypeClassesSpec.scala
+++ b/src/test/scala/scalatutorial/sections/TypeClassesSpec.scala
@@ -11,7 +11,7 @@ import org.scalatest.Spec
 import org.scalatest.prop.Checkers
 import shapeless.HNil
 
-import scalatutorial.aux.Rational
+import scalatutorial.utils.Rational
 
 class TypeClassesSpec extends Spec with Checkers {