diff --git a/apps/calculation/calculation.cpp b/apps/calculation/calculation.cpp
index 6d4e41ae1..45d638a1a 100644
--- a/apps/calculation/calculation.cpp
+++ b/apps/calculation/calculation.cpp
@@ -42,7 +42,7 @@ void Calculation::setContent(const char * c, Context * context, Expression ansEx
      * to keep Ans symbol in the calculation store. */
     PoincareHelpers::Serialize(input, m_inputText, sizeof(m_inputText));
   }
-  Expression exactOutput = PoincareHelpers::ParseAndSimplify(m_inputText, *context, false);
+  Expression exactOutput = PoincareHelpers::ParseAndSimplify(m_inputText, *context, true);
   PoincareHelpers::Serialize(exactOutput, m_exactOutputText, sizeof(m_exactOutputText));
   Expression approximateOutput = PoincareHelpers::Approximate<double>(exactOutput, *context);
   PoincareHelpers::Serialize(approximateOutput, m_approximateOutputText, sizeof(m_approximateOutputText));