diff --git a/apps/regression/model/model.h b/apps/regression/model/model.h
index 34df1fc04..8953c0078 100644
--- a/apps/regression/model/model.h
+++ b/apps/regression/model/model.h
@@ -24,7 +24,7 @@ public:
     Logistic    = 8
   };
   static constexpr int k_numberOfModels = 9;
-  static constexpr int k_maxNumberOfCoefficients = 5;
+  static constexpr int k_maxNumberOfCoefficients = 5; // This has to verify: k_maxNumberOfCoefficients < Matrix::k_maxNumberOfCoefficients
   virtual ~Model() = default;
   virtual Poincare::ExpressionLayout * layout() = 0;
   // simplifiedExpression is overrided only by Models that override levelSet