diff --git a/poincare/include/poincare/symbol.h b/poincare/include/poincare/symbol.h
index e4723a234..2ecfb53e2 100644
--- a/poincare/include/poincare/symbol.h
+++ b/poincare/include/poincare/symbol.h
@@ -31,6 +31,7 @@ public:
   static SpecialSymbols matrixSymbol(char index);
   Symbol(char name);
   Symbol(Symbol&& other); // C++11 move constructor
+  Symbol(const Symbol& other); // C++11 copy constructor
   char name() const;
   Type type() const override;
   Expression * clone() const override;
diff --git a/poincare/src/symbol.cpp b/poincare/src/symbol.cpp
index 8376f5418..dfe2f3c16 100644
--- a/poincare/src/symbol.cpp
+++ b/poincare/src/symbol.cpp
@@ -92,6 +92,11 @@ Symbol::Symbol(Symbol&& other) :
 {
 }
 
+Symbol::Symbol(const Symbol& other) :
+  m_name(other.m_name)
+{
+}
+
 Expression * Symbol::clone() const {
   return new Symbol(m_name);
 }