diff --git a/apps/probability/distribution/fisher_distribution.cpp b/apps/probability/distribution/fisher_distribution.cpp
index e22931753..97e145599 100644
--- a/apps/probability/distribution/fisher_distribution.cpp
+++ b/apps/probability/distribution/fisher_distribution.cpp
@@ -53,12 +53,11 @@ float FisherDistribution::evaluateAtAbscissa(float x) const {
 
 bool FisherDistribution::authorizedValueAtIndex(float x, int index) const {
   assert(index == 0 || index == 1);
-  return x > FLT_MIN; // TODO LEA Add max limit? See NormalDistribution
+  return x > FLT_MIN && x <= k_maxParameter;
 }
 
 void FisherDistribution::setParameterAtIndex(float f, int index) {
   TwoParameterDistribution::setParameterAtIndex(f, index);
-  // TODO LEA Adjust parameter if max definition ? See NormalDistribution
 }
 
 double FisherDistribution::cumulativeDistributiveFunctionAtAbscissa(double x) const {
diff --git a/apps/probability/distribution/fisher_distribution.h b/apps/probability/distribution/fisher_distribution.h
index cfe744252..e61471f4b 100644
--- a/apps/probability/distribution/fisher_distribution.h
+++ b/apps/probability/distribution/fisher_distribution.h
@@ -22,6 +22,7 @@ public:
   double cumulativeDistributiveFunctionAtAbscissa(double x) const override;
   double cumulativeDistributiveInverseForProbability(double * probability) override;
 private:
+  constexpr static float k_maxParameter = 144.0f; // The display works badly for d1 = d2 > 144.
   constexpr static float k_defaultMax = 3.0f;
   float mode() const;
 };