diff --git a/jOOQ/src/main/java/org/jooq/impl/Iif.java b/jOOQ/src/main/java/org/jooq/impl/Iif.java
index 3fc39b7122..1f95e9d03a 100644
--- a/jOOQ/src/main/java/org/jooq/impl/Iif.java
+++ b/jOOQ/src/main/java/org/jooq/impl/Iif.java
@@ -45,7 +45,7 @@ import org.jooq.QueryPart;
 /**
  * @author Lukas Eder
  */
-public class Iif<T> extends AbstractFunction<T> {
+final class Iif<T> extends AbstractFunction<T> {
 
     /**
      * Generated UID
diff --git a/jOOQ/src/main/java/org/jooq/impl/NullIf.java b/jOOQ/src/main/java/org/jooq/impl/NullIf.java
index bf13b68401..eb6c535f27 100644
--- a/jOOQ/src/main/java/org/jooq/impl/NullIf.java
+++ b/jOOQ/src/main/java/org/jooq/impl/NullIf.java
@@ -44,7 +44,7 @@ import org.jooq.QueryPart;
 /**
  * @author Lukas Eder
  */
-public class NullIf<T> extends AbstractFunction<T> {
+final class NullIf<T> extends AbstractFunction<T> {
 
     /**
      * Generated UID