diff --git a/01.curriculum/01.physics-chemistry-biology/03.Niv3/04.electromagnetism/03.electrostatic-equilibrium-in-matter/15.electrostatics.dielectrics/02.electrostatics-dielectrics-overview/cheatsheet.fr.md b/01.curriculum/01.physics-chemistry-biology/03.Niv3/04.electromagnetism/03.electrostatic-equilibrium-in-matter/15.electrostatics.dielectrics/02.electrostatics-dielectrics-overview/cheatsheet.fr.md
index 191c1c4b3..aa4e29e59 100644
--- a/01.curriculum/01.physics-chemistry-biology/03.Niv3/04.electromagnetism/03.electrostatic-equilibrium-in-matter/15.electrostatics.dielectrics/02.electrostatics-dielectrics-overview/cheatsheet.fr.md
+++ b/01.curriculum/01.physics-chemistry-biology/03.Niv3/04.electromagnetism/03.electrostatic-equilibrium-in-matter/15.electrostatics.dielectrics/02.electrostatics-dielectrics-overview/cheatsheet.fr.md
@@ -17,6 +17,7 @@ _Figure 1._
* **Milieu diélectrique** = milieu ne possédant *pas de charges libres*.
+
$`\Longrightarrow\:`$ *charges* **liées entre elles**, au sein de leur groupement
neutre (atomique, moléculaire ou cristallin) d'appartenance.