diff --git a/jOOQ/src/main/java/org/jooq/impl/AbstractField.java b/jOOQ/src/main/java/org/jooq/impl/AbstractField.java
index e318cb5871..d1a16320ae 100644
--- a/jOOQ/src/main/java/org/jooq/impl/AbstractField.java
+++ b/jOOQ/src/main/java/org/jooq/impl/AbstractField.java
@@ -253,8 +253,8 @@ implements
 
     @SuppressWarnings("unchecked")
     @Override
-    public Field<T> as(Name alias) {
-        return new FieldAlias<>((Field<T>) (this instanceof Condition c ? DSL.field(c) : this), alias);
+    public /* non-final */ Field<T> as(Name alias) {
+        return new FieldAlias<>((Field<T>) (this instanceof Condition c ? DSL.field(c) : this), alias, getCommentPart());
     }
 
     @Override
@@ -277,7 +277,7 @@ implements
     }
 
     @Override
-    public final Field<T> comment(Comment comment) {
+    public /* non-final */ Field<T> comment(Comment comment) {
         return DSL.field(getQualifiedName(), getDataType(), comment);
     }
 
diff --git a/jOOQ/src/main/java/org/jooq/impl/FieldAlias.java b/jOOQ/src/main/java/org/jooq/impl/FieldAlias.java
index bb23294632..47ec09cdf6 100644
--- a/jOOQ/src/main/java/org/jooq/impl/FieldAlias.java
+++ b/jOOQ/src/main/java/org/jooq/impl/FieldAlias.java
@@ -41,6 +41,7 @@ package org.jooq.impl;
 import java.util.Objects;
 
 import org.jooq.Clause;
+import org.jooq.Comment;
 import org.jooq.Context;
 import org.jooq.Field;
 import org.jooq.Name;
@@ -65,7 +66,11 @@ implements
     private final Alias<Field<T>> alias;
 
     FieldAlias(Field<T> field, Name alias) {
-        super(alias, field.getDataType());
+        this(field, alias, null);
+    }
+
+    FieldAlias(Field<T> field, Name alias, Comment comment) {
+        super(alias, field.getDataType(), comment);
 
         this.alias = new Alias<>(field, this, alias);
     }
@@ -87,7 +92,12 @@ implements
 
     @Override
     public final Field<T> as(Name as) {
-        return alias.wrapped().as(as);
+        return new FieldAlias<>(alias.wrapped(), as, getCommentPart());
+    }
+
+    @Override
+    public final Field<T> comment(Comment comment) {
+        return new FieldAlias<>(alias.wrapped(), alias.alias, comment);
     }
 
     @Override