diff --git a/poincare/src/layout/vertical_offset_layout.cpp b/poincare/src/layout/vertical_offset_layout.cpp
index a51ae624d..9a4e9e2a4 100644
--- a/poincare/src/layout/vertical_offset_layout.cpp
+++ b/poincare/src/layout/vertical_offset_layout.cpp
@@ -250,7 +250,7 @@ KDSize VerticalOffsetLayout::computeSize() {
     assert(m_parent->isHorizontal());
     int indexInParent = m_parent->indexOfChild(this);
     if (indexInParent < m_parent-> numberOfChildren() - 1 && m_parent->editableChild(indexInParent + 1)->hasUpperLeftIndex()) {
-      width += 5;
+      width += k_separationMargin;
     }
   }
   KDCoordinate height = baseLayout()->size().height() + indiceLayout()->size().height() - k_indiceHeight;
diff --git a/poincare/src/layout/vertical_offset_layout.h b/poincare/src/layout/vertical_offset_layout.h
index 1c797f7c8..719de510d 100644
--- a/poincare/src/layout/vertical_offset_layout.h
+++ b/poincare/src/layout/vertical_offset_layout.h
@@ -33,6 +33,7 @@ protected:
   Type m_type;
 private:
   constexpr static KDCoordinate k_indiceHeight = 5;
+  constexpr static KDCoordinate k_separationMargin = 5;
 };
 
 }