diff --git a/core/optimization/src/test/java/it/unibz/inf/ontop/iq/executor/FunctionalDependencyTest.java b/core/optimization/src/test/java/it/unibz/inf/ontop/iq/executor/FunctionalDependencyTest.java
index <HASH>..<HASH> 100644
--- a/core/optimization/src/test/java/it/unibz/inf/ontop/iq/executor/FunctionalDependencyTest.java
+++ b/core/optimization/src/test/java/it/unibz/inf/ontop/iq/executor/FunctionalDependencyTest.java
@@ -1045,6 +1045,7 @@ public class FunctionalDependencyTest {
         optimizeAndCompare(query, expectedQuery);
     }
 
+    @Ignore("TODO: optimize the redundant self-lj (no variable on the right is used")
     @Test
     public void testLJRedundantSelfLeftJoin1() throws EmptyQueryException {
         DistinctVariableOnlyDataAtom projectionAtom = ATOM_FACTORY.getDistinctVariableOnlyDataAtom(ANS1_PREDICATE_AR_3, X, Y, Z);
One test re-disabled in FunctionalDependencyTest (not for this opt).