diff --git a/poincare/include/poincare/tree_by_reference.h b/poincare/include/poincare/tree_by_reference.h
index 34d381ea6..c1635a753 100644
--- a/poincare/include/poincare/tree_by_reference.h
+++ b/poincare/include/poincare/tree_by_reference.h
@@ -56,9 +56,6 @@ public:
 
   bool isGhost() const { return node()->isGhost(); }
   bool isUninitialized() const { return m_identifier == TreeNode::NoNodeIdentifier; }
-#if POINCARE_ALLOW_STATIC_NODES
-  bool isStatic() const { return node()->isStatic(); }
-#endif
 
   /* Hierarchy */
   bool hasChild(TreeByReference t) const;
diff --git a/poincare/include/poincare/tree_node.h b/poincare/include/poincare/tree_node.h
index 90a787d13..c5235eae2 100644
--- a/poincare/include/poincare/tree_node.h
+++ b/poincare/include/poincare/tree_node.h
@@ -22,16 +22,10 @@ class TreeNode {
   friend class TreePool;
 public:
   static constexpr int NoNodeIdentifier = -1;
-#if POINCARE_ALLOW_STATIC_NODES
-  static constexpr int FirstStaticNodeIdentifier = -2;
-#endif
 
   virtual ~TreeNode() {}
 
   // Attributes
-#if POINCARE_ALLOW_STATIC_NODES
-  bool isStatic() const { return m_identifier <= FirstStaticNodeIdentifier; }
-#endif
   void setParentIdentifier(int parentID) { m_parentIdentifier = parentID; }
   void deleteParentIdentifier() { m_parentIdentifier = NoNodeIdentifier; }
   virtual size_t size() const = 0;
diff --git a/poincare/include/poincare/tree_pool.h b/poincare/include/poincare/tree_pool.h
index 868628b3e..80f875403 100644
--- a/poincare/include/poincare/tree_pool.h
+++ b/poincare/include/poincare/tree_pool.h
@@ -11,8 +11,6 @@
 #include <iostream>
 #endif
 
-#define POINCARE_ALLOW_STATIC_NODES 0
-
 namespace Poincare {
 
 class TreeByReference;
@@ -29,13 +27,6 @@ public:
 
   // Node
   TreeNode * node(int identifier) const {
-#if POINCARE_ALLOW_STATIC_NODES
-    if (identifier <= TreeNode::FirstStaticNodeIdentifier) {
-      int index = indexOfStaticNode(identifier);
-      assert(index >= 0 && index < MaxNumberOfStaticNodes);
-      return m_staticNodes[index];
-    }
-#endif
     assert(identifier >= 0 && identifier <= MaxNumberOfNodes);
     return m_nodeForIdentifier[identifier];
   }
@@ -50,11 +41,6 @@ public:
   TreeNode * deepCopy(TreeNode * node);
   TreeNode * copyTreeFromAddress(const void * address, size_t size);
 
-#if POINCARE_ALLOW_STATIC_NODES
-  void registerStaticNodeIfRequired(TreeNode * node);
-  void registerStaticNode(TreeNode * node);
-#endif
-
 #if POINCARE_TREE_LOG
   void flatLog(std::ostream & stream);
   void treeLog(std::ostream & stream);
@@ -65,9 +51,6 @@ public:
 private:
   constexpr static int BufferSize = 32768;
   constexpr static int MaxNumberOfNodes = BufferSize/sizeof(TreeNode);
-#if POINCARE_ALLOW_STATIC_NODES
-  constexpr static int MaxNumberOfStaticNodes = 200; // TODO: count how may are needed
-#endif
   static TreePool * SharedStaticPool;
 
   // TreeNode
@@ -82,11 +65,6 @@ private:
     node->rename(generateIdentifier(), unregisterPreviousIdentifier);
   }
 
-#if POINCARE_ALLOW_STATIC_NODES
-  int identifierOfStaticNodeAtIndex(int index) const { return TreeNode::FirstStaticNodeIdentifier-index;} // We do not want positive indexes that are reserved for pool nodes, and -1 is reserved for node initialisation.
-  int indexOfStaticNode(int id) const { return -(id - TreeNode::FirstStaticNodeIdentifier);}
-#endif
-
   // Iterators
   TreeNode * first() const { return reinterpret_cast<TreeNode *>(const_cast<char *>(m_buffer)); }
   TreeNode * last() const { return reinterpret_cast<TreeNode *>(const_cast<char *>(m_cursor)); }
@@ -167,9 +145,6 @@ private:
   char m_buffer[BufferSize];
   IdentifierStack m_identifiers;
   TreeNode * m_nodeForIdentifier[MaxNumberOfNodes];
-#if POINCARE_ALLOW_STATIC_NODES
-  TreeNode * m_staticNodes[MaxNumberOfStaticNodes];
-#endif
 };
 
 }
diff --git a/poincare/src/tree_by_reference.cpp b/poincare/src/tree_by_reference.cpp
index 67a46b583..26450654c 100644
--- a/poincare/src/tree_by_reference.cpp
+++ b/poincare/src/tree_by_reference.cpp
@@ -9,12 +9,6 @@ namespace Poincare {
 /* Clone */
 
 TreeByReference TreeByReference::clone() const {
-#if POINCARE_ALLOW_STATIC_NODES
-  if (isStatic()) {
-    // Static nodes are not copied
-    return TreeByReference(node());
-  }
-#endif
   /* TODO Remove ?
   if (isUninitialized()) {
     return TreeByReference();
@@ -56,15 +50,6 @@ void TreeByReference::replaceChildInPlace(TreeByReference oldChild, TreeByRefere
 
   assert(!isUninitialized());
 
-#if POINCARE_ALLOW_STATIC_NODES
-  // If the new node is static, copy it in the pool and add the copy
-  if (newChild.isStatic()) {
-    TreeByReference newT = TreeByReference(TreePool::sharedPool()->deepCopy(newChild.node()));
-    replaceChildInPlace(oldChild, newT);
-    return;
-  }
-#endif
-
   // If the new child has a parent, detach from it
   newChild.detachFromParent();
 
@@ -117,9 +102,6 @@ void TreeByReference::mergeChildrenAtIndexInPlace(TreeByReference t, int i) {
 }
 
 void TreeByReference::swapChildrenInPlace(int i, int j) {
-#if POINCARE_ALLOW_STATIC_NODES
-  assert(!isStatic());
-#endif
   assert(i >= 0 && i < numberOfChildren());
   assert(j >= 0 && j < numberOfChildren());
   if (i == j) {
@@ -148,14 +130,6 @@ void TreeByReference::addChildAtIndexInPlace(TreeByReference t, int index, int c
   assert(!t.isUninitialized());
   assert(index >= 0 && index <= currentNumberOfChildren);
 
-#if POINCARE_ALLOW_STATIC_NODES
-  // If the new node is static, copy it in the pool and add the copy
-  if (t.isStatic()) {
-    TreeByReference newT = TreeByReference(TreePool::sharedPool()->deepCopy(t.node()));
-    addChildAtIndexInPlace(newT, index, currentNumberOfChildren);
-    return;
-  }
-#endif
   // If t has a parent, detach t from it.
   t.detachFromParent();
   assert(t.parent().isUninitialized());
diff --git a/poincare/src/tree_node.cpp b/poincare/src/tree_node.cpp
index b257e32f1..2a417b760 100644
--- a/poincare/src/tree_node.cpp
+++ b/poincare/src/tree_node.cpp
@@ -8,12 +8,6 @@ namespace Poincare {
 // Node operations
 
 void TreeNode::release(int currentNumberOfChildren) {
-#if POINCARE_ALLOW_STATIC_NODES
-  if (isStatic()) {
-    // Do not release static nodes
-    return;
-  }
-#endif
   m_referenceCounter--;
   if (m_referenceCounter == 0) {
     deleteParentIdentifierInChildren();
diff --git a/poincare/src/tree_pool.cpp b/poincare/src/tree_pool.cpp
index 80b1225b2..a6fdc9136 100644
--- a/poincare/src/tree_pool.cpp
+++ b/poincare/src/tree_pool.cpp
@@ -33,33 +33,6 @@ void TreePool::freeIdentifier(int identifier) {
   }
 }
 
-#if POINCARE_ALLOW_STATIC_NODES
-void TreePool::registerStaticNodeIfRequired(TreeNode * node) {
-  if (node->identifier() == -1) {
-    registerStaticNode(node);
-  }
-}
-
-void TreePool::registerStaticNode(TreeNode * node) {
-#if 0
-  if (nodeID < 0) {
-    int nodeIndex = indexOfStaticNode(nodeID);
-    assert(m_staticNodes[nodeIndex] == nullptr && nodeIndex < MaxNumberOfStaticNodes);
-    m_staticNodes[nodeIndex] = node;
-    node->rename(nodeID, false);
-    return;
-  }
-#endif
-  int generatedNodeIndex = 0;
-  while (m_staticNodes[generatedNodeIndex] != nullptr && generatedNodeIndex < MaxNumberOfStaticNodes) {
-    generatedNodeIndex++;
-  }
-  assert(generatedNodeIndex < MaxNumberOfStaticNodes);
-  m_staticNodes[generatedNodeIndex] = node;
-  node->rename(identifierOfStaticNodeAtIndex(generatedNodeIndex), false);
-}
-#endif
-
 template <typename T>
 T * TreePool::createTreeNode(size_t size) {
   T * node = new(alloc(size)) T();