diff --git a/poincare/include/poincare/confidence_interval.h b/poincare/include/poincare/confidence_interval.h
index 9f953e0af..72c26f5fd 100644
--- a/poincare/include/poincare/confidence_interval.h
+++ b/poincare/include/poincare/confidence_interval.h
@@ -24,7 +24,7 @@ private:
   Expression * shallowReduce(Context& context, AngleUnit angleUnit) override;
   /* Evaluation */
   Expression * privateEvaluate(Expression::SinglePrecision p, Context& context, Expression::AngleUnit angleUnit) const override { return templatedEvaluate<float>(context, angleUnit); }
-  Expression * privateEvaluate(Expression::DoublePrecision p, Context& context, Expression::AngleUnit angleUnit) const override { return templatedEvaluate<float>(context, angleUnit); }
+  Expression * privateEvaluate(Expression::DoublePrecision p, Context& context, Expression::AngleUnit angleUnit) const override { return templatedEvaluate<double>(context, angleUnit); }
   template<typename T> Expression * templatedEvaluate(Context& context, AngleUnit angleUnit) const;
 };
 
diff --git a/poincare/include/poincare/prediction_interval.h b/poincare/include/poincare/prediction_interval.h
index bef5d3963..8018a17b9 100644
--- a/poincare/include/poincare/prediction_interval.h
+++ b/poincare/include/poincare/prediction_interval.h
@@ -24,7 +24,7 @@ private:
   Expression * shallowReduce(Context& context, AngleUnit angleUnit) override;
   /* Evaluation */
   Expression * privateEvaluate(Expression::SinglePrecision p, Context& context, Expression::AngleUnit angleUnit) const override { return templatedEvaluate<float>(context, angleUnit); }
-  Expression * privateEvaluate(Expression::DoublePrecision p, Context& context, Expression::AngleUnit angleUnit) const override { return templatedEvaluate<float>(context, angleUnit); }
+  Expression * privateEvaluate(Expression::DoublePrecision p, Context& context, Expression::AngleUnit angleUnit) const override { return templatedEvaluate<double>(context, angleUnit); }
   template<typename T> Expression * templatedEvaluate(Context& context, AngleUnit angleUnit) const;
 };