diff --git a/docs/OOP.md b/docs/OOP.md
index f15d14f..8a8ef12 100644
--- a/docs/OOP.md
+++ b/docs/OOP.md
@@ -365,8 +365,8 @@ Example:
 ```lyng
 // Interface with state (id) and abstract requirements
 interface Character(val id) {
-    abstract var health
-    abstract var mana
+    var health
+    var mana
     
     fun isAlive() = health > 0
     fun status() = name + " (#" + id + "): " + health + " HP, " + mana + " MP"
diff --git a/lynglib/src/commonTest/kotlin/OOTest.kt b/lynglib/src/commonTest/kotlin/OOTest.kt
index 516b371..bea93fe 100644
--- a/lynglib/src/commonTest/kotlin/OOTest.kt
+++ b/lynglib/src/commonTest/kotlin/OOTest.kt
@@ -698,8 +698,8 @@ class OOTest {
             """
             // Interface with state (id) and abstract requirements
             interface Character(val id) {
-                abstract var health
-                abstract var mana
+                var health
+                var mana
                 fun isAlive() = health > 0
                 fun status() = name + " (#" + id + "): " + health + " HP, " + mana + " MP"
                 // name is also abstractly required by the status method,