diff --git a/jOOQ/src/main/java/org/jooq/Field.java b/jOOQ/src/main/java/org/jooq/Field.java
index 6a45900373..0cc5526176 100644
--- a/jOOQ/src/main/java/org/jooq/Field.java
+++ b/jOOQ/src/main/java/org/jooq/Field.java
@@ -601,6 +601,7 @@ extends
      * Convenience method for {@link #sortDefault()} and then
      * {@link SortField#nullsFirst()}.
      */
+    @NotNull
     @Support
     SortField<T> nullsFirst();
 
@@ -608,6 +609,7 @@ extends
      * Convenience method for {@link #sortDefault()} and then
      * {@link SortField#nullsLast()}.
      */
+    @NotNull
     @Support
     SortField<T> nullsLast();