diff --git a/poincare/include/poincare/normal_distribution.h b/poincare/include/poincare/normal_distribution.h
index 4806a1467..fe30513f8 100644
--- a/poincare/include/poincare/normal_distribution.h
+++ b/poincare/include/poincare/normal_distribution.h
@@ -16,11 +16,11 @@ public:
    * The result of the verification is *result. */
   static bool ExpressionMuAndVarAreOK(bool * result, const Expression & mu, const Expression & sigma, Context * context);
 private:
-  /* For the standard normal distribution, P(X < y) > 0.9999995 for y >= 4.892 so the
+  /* For the standard normal distribution, P(X < y) > 0.99999995 for y >= 5.33 so the
    * value displayed is 1. But this is dependent on the fact that we display
    * only 7 decimal values! */
   static_assert(Preferences::LargeNumberOfSignificantDigits == 7, "k_boundStandardNormalDistribution is ill-defined compared to LargeNumberOfSignificantDigits");
-  constexpr static double k_boundStandardNormalDistribution = 4.892;
+  constexpr static double k_boundStandardNormalDistribution = 5.33;
   template<typename T> static T StandardNormalCumulativeDistributiveFunctionAtAbscissa(T abscissa);
   template<typename T> static T StandardNormalCumulativeDistributiveInverseForProbability(T probability);
 };