diff --git a/poincare/src/layout/conjugate_layout.cpp b/poincare/src/layout/conjugate_layout.cpp
index 593225e91..e113afd2f 100644
--- a/poincare/src/layout/conjugate_layout.cpp
+++ b/poincare/src/layout/conjugate_layout.cpp
@@ -94,7 +94,7 @@ void ConjugateLayout::replaceChildAndMoveCursor(const ExpressionLayout * oldChil
 
 void ConjugateLayout::removePointedChildAtIndexAndMoveCursor(int index, bool deleteAfterRemoval, ExpressionLayoutCursor * cursor) {
   assert(index >= 0 && index < numberOfChildren());
-  assert((cursor->pointedExpressionLayout() == child(index)) || (cursor->pointedExpressionLayout()->hasAncestor(child(index))));
+  assert(cursor->pointedExpressionLayout()->hasAncestor(child(index), true));
   replaceChildAndMoveCursor(child(index), new EmptyLayout(), deleteAfterRemoval, cursor);
 }
 
diff --git a/poincare/src/layout/dynamic_layout_hierarchy.cpp b/poincare/src/layout/dynamic_layout_hierarchy.cpp
index 5bbcad605..60b0de32b 100644
--- a/poincare/src/layout/dynamic_layout_hierarchy.cpp
+++ b/poincare/src/layout/dynamic_layout_hierarchy.cpp
@@ -116,7 +116,7 @@ void DynamicLayoutHierarchy::removeChildAtIndex(int index, bool deleteAfterRemov
 
 void DynamicLayoutHierarchy::removePointedChildAtIndexAndMoveCursor(int index, bool deleteAfterRemoval, ExpressionLayoutCursor * cursor) {
   assert(index >= 0 && index < numberOfChildren());
-  assert((cursor->pointedExpressionLayout() == child(index)) || (cursor->pointedExpressionLayout()->hasAncestor(child(index))));
+  assert(cursor->pointedExpressionLayout()->hasAncestor(child(index), true));
   if (numberOfChildren() == 1) {
     if (m_parent) {
       if (!deleteAfterRemoval) {
diff --git a/poincare/src/layout/expression_layout.cpp b/poincare/src/layout/expression_layout.cpp
index 2672f233d..bb8ed4b83 100644
--- a/poincare/src/layout/expression_layout.cpp
+++ b/poincare/src/layout/expression_layout.cpp
@@ -184,7 +184,7 @@ void ExpressionLayout::removeChildAtIndex(int index, bool deleteAfterRemoval) {
 
 void ExpressionLayout::removePointedChildAtIndexAndMoveCursor(int index, bool deleteAfterRemoval, ExpressionLayoutCursor * cursor) {
   assert(index >= 0 && index < numberOfChildren());
-  assert((cursor->pointedExpressionLayout() == child(index)) || (cursor->pointedExpressionLayout()->hasAncestor(child(index))));
+  assert(cursor->pointedExpressionLayout()->hasAncestor(child(index), true));
   removeChildAtIndex(index, deleteAfterRemoval);
   if (index < numberOfChildren()) {
     cursor->setPointedExpressionLayout(editableChild(index));
diff --git a/poincare/src/layout/matrix_layout.cpp b/poincare/src/layout/matrix_layout.cpp
index 4e12f4271..df13a623f 100644
--- a/poincare/src/layout/matrix_layout.cpp
+++ b/poincare/src/layout/matrix_layout.cpp
@@ -163,7 +163,7 @@ void MatrixLayout::replaceChildAndMoveCursor(const ExpressionLayout * oldChild,
 
 void MatrixLayout::removePointedChildAtIndexAndMoveCursor(int index, bool deleteAfterRemoval, ExpressionLayoutCursor * cursor) {
   assert(index >= 0 && index < numberOfChildren());
-  assert((cursor->pointedExpressionLayout() == child(index)) || (cursor->pointedExpressionLayout()->hasAncestor(child(index))));
+  assert(cursor->pointedExpressionLayout()->hasAncestor(child(index), true));
   replaceChildAndMoveCursor(child(index), new EmptyLayout(), deleteAfterRemoval, cursor);
 }