diff --git a/apps/calculation/app.cpp b/apps/calculation/app.cpp
index eda6f520f..bb2dbda3e 100644
--- a/apps/calculation/app.cpp
+++ b/apps/calculation/app.cpp
@@ -95,7 +95,7 @@ bool App::textInputIsCorrect(const char * text) {
     return false;
   }
   Expression ansExpression = static_cast<Snapshot *>(snapshot())->calculationStore()->ansExpression(localContext());
-  exp = exp.replaceSymbolWithExpression(Symbol::SpecialSymbols::Ans, ansExpression);
+  exp = exp.replaceSymbolWithExpression("ans", ansExpression);
   char buffer[Calculation::k_printedExpressionSize];
   int length = PoincareHelpers::Serialize(exp, buffer, sizeof(buffer));
   /* if the buffer is totally full, it is VERY likely that writeTextInBuffer
diff --git a/apps/calculation/calculation.cpp b/apps/calculation/calculation.cpp
index d76022f71..e41e828bf 100644
--- a/apps/calculation/calculation.cpp
+++ b/apps/calculation/calculation.cpp
@@ -34,7 +34,7 @@ void Calculation::reset() {
 
 void Calculation::setContent(const char * c, Context * context, Expression ansExpression) {
   reset();
-  Expression input = Expression::parse(c).replaceSymbolWithExpression(Symbol::SpecialSymbols::Ans, ansExpression);
+  Expression input = Expression::parse(c).replaceSymbolWithExpression("ans", ansExpression);
   /* We do not store directly the text enter by the user because we do not want
    * to keep Ans symbol in the calculation store. */
   PoincareHelpers::Serialize(input, m_inputText, sizeof(m_inputText));