diff --git a/src/main/scala/scalatutorial/sections/ObjectOrientedProgramming.scala b/src/main/scala/scalatutorial/sections/ObjectOrientedProgramming.scala
index c9df0a2b..85ffc5db 100644
--- a/src/main/scala/scalatutorial/sections/ObjectOrientedProgramming.scala
+++ b/src/main/scala/scalatutorial/sections/ObjectOrientedProgramming.scala
@@ -487,7 +487,7 @@ object ObjectOrientedProgramming extends ScalaTutorialSection {
    * `Empty` and `NonEmpty` are ''subclasses'' of
    * `IntSet`.
    *
-   * In Scala, any user-defined class extends another class.
+   * In Scala, every user-defined class extends another class.
    *
    * If no superclass is given, the standard class `Object` in the Java package `java.lang` is assumed.
    *