diff --git a/jOOQ/src/main/java/org/jooq/impl/JoinTable.java b/jOOQ/src/main/java/org/jooq/impl/JoinTable.java
index 76377f94ba..56f5cb2985 100644
--- a/jOOQ/src/main/java/org/jooq/impl/JoinTable.java
+++ b/jOOQ/src/main/java/org/jooq/impl/JoinTable.java
@@ -123,8 +123,8 @@ class JoinTable extends AbstractTable<Record> implements TableOptionalOnStep<Rec
     private static final long             serialVersionUID = 8377996833996498178L;
     private static final Clause[]         CLAUSES          = { TABLE, TABLE_JOIN };
 
-    final Table<?>                        lhs;
-    final Table<?>                        rhs;
+    private final Table<?>                lhs;
+    private final Table<?>                rhs;
     private final QueryPartList<Field<?>> rhsPartitionBy;
 
     private final JoinType                type;