diff --git a/docs/src/modules/ROOT/pages/using-timefold-solver/modeling-planning-problems.adoc b/docs/src/modules/ROOT/pages/using-timefold-solver/modeling-planning-problems.adoc
index b1622ce561..d015381bc2 100644
--- a/docs/src/modules/ROOT/pages/using-timefold-solver/modeling-planning-problems.adoc
+++ b/docs/src/modules/ROOT/pages/using-timefold-solver/modeling-planning-problems.adoc
@@ -358,7 +358,7 @@ During Construction Heuristics, those variables are likely to be `null` anyway.
 For example, a ``Lesson``'s `timeslot` variable should not be used.
 
 
-[#planningVariable]
+[#planningVariablex]
 == Planning variable (genuine)