diff --git a/poincare/src/tree_by_value.cpp b/poincare/src/tree_by_value.cpp
index e099adef4..95581bd9c 100644
--- a/poincare/src/tree_by_value.cpp
+++ b/poincare/src/tree_by_value.cpp
@@ -5,11 +5,11 @@ namespace Poincare {
 /* Constructors */
 
 TreeByValue::TreeByValue(const TreeByValue & tr) :
-  TreeByValue(clone()) {}
+  TreeByValue(tr.clone()) {}
 
 /* Operators */
 TreeByValue& TreeByValue::operator=(const TreeByValue& tr) {
-  TreeByReference t = clone();
+  TreeByReference t = tr.clone();
   m_identifier = t.identifier();
   return *this;
 }