diff --git a/poincare/test/trigo.cpp b/poincare/test/trigo.cpp
index c6049fa79..6743ed790 100644
--- a/poincare/test/trigo.cpp
+++ b/poincare/test/trigo.cpp
@@ -105,10 +105,10 @@ QUIZ_CASE(poincare_trigo_evaluate) {
   assert_parsed_expression_evaluates_to<float>("acos(-32)", "180-238.2725*I", Degree);
   // On R*i
   assert_parsed_expression_evaluates_to<float>("acos(3*I)", "1.5708-1.8184*I", Radian, Cartesian, 5);
-  assert_parsed_expression_evaluates_to<float>("acos(3*I)", "89.9999-104.189*I", Degree, Cartesian, 6);
+  assert_parsed_expression_evaluates_to<float>("acos(3*I)", "90-104.19*I", Degree, Cartesian, 5);
   // Symmetry: odd on imaginary
   assert_parsed_expression_evaluates_to<float>("acos(-3*I)", "1.5708+1.8184*I", Radian, Cartesian, 5);
-  assert_parsed_expression_evaluates_to<float>("acos(-3*I)", "89.9999+104.189*I", Degree, Cartesian, 6);
+  assert_parsed_expression_evaluates_to<float>("acos(-3*I)", "90+104.19*I", Degree, Cartesian, 5);
   // On C
   assert_parsed_expression_evaluates_to<float>("acos(I-4)", "2.8894-2.0966*I", Radian, Cartesian, 5);
   assert_parsed_expression_evaluates_to<float>("acos(I-4)", "165.551-120.126*I", Degree, Cartesian, 6);