diff --git a/generate/input/descriptor.json b/generate/input/descriptor.json
index 5306e16b2..3d0562e77 100644
--- a/generate/input/descriptor.json
+++ b/generate/input/descriptor.json
@@ -4187,6 +4187,16 @@
         "singletonCppClassName": "GitRepository"
       },
       "functions": {
+        "git_tree_create_updated": {
+          "args": {
+            "updates": {
+              "cType": "git_tree_update *",
+              "cppClassName": "Array",
+              "jsClassName": "Array",
+              "arrayElementCppClassName": "GitTreeUpdate"
+            }
+          }
+        },
         "git_tree_entry_byid": {
           "return": {
             "ownedByThis": true
@@ -4361,6 +4371,10 @@
         "../include/git_buf_converter.h"
       ]
     },
+    "tree_update": {
+      "hasConstructor": true,
+      "ignoreInit": true
+    },
     "writestream": {
       "cType": "git_writestream",
       "needsForwardDeclaration": false,
diff --git a/generate/templates/partials/convert_from_v8.cc b/generate/templates/partials/convert_from_v8.cc
index 7fc74a29b..cad28ebfc 100644
--- a/generate/templates/partials/convert_from_v8.cc
+++ b/generate/templates/partials/convert_from_v8.cc
@@ -48,12 +48,12 @@
   {%elsif cppClassName == 'Array'%}
 
   v8::Local<v8::Array> tmp_{{ name }} = v8::Local<v8::Array>::Cast(info[{{ jsArg }}]);
-  from_{{ name }} = ({{ cType }})malloc(tmp_{{ name }}->Length() * sizeof({{ cType|replace '**' '*' }}));
+  from_{{ name }} = ({{ cType }})malloc(tmp_{{ name }}->Length() * sizeof({{ cType|unPointer }}));
       for (unsigned int i = 0; i < tmp_{{ name }}->Length(); i++) {
     {%--
       // FIXME: should recursively call convertFromv8.
     --%}
-      from_{{ name }}[i] = Nan::ObjectWrap::Unwrap<{{ arrayElementCppClassName }}>(Nan::To<v8::Object>(Nan::Get(tmp_{{ name }}, Nan::New(static_cast<double>(i))).ToLocalChecked()).ToLocalChecked())->GetValue();
+      from_{{ name }}[i] = {%if not cType|isDoublePointer %}*{%endif%}Nan::ObjectWrap::Unwrap<{{ arrayElementCppClassName }}>(Nan::To<v8::Object>(Nan::Get(tmp_{{ name }}, Nan::New(static_cast<double>(i))).ToLocalChecked()).ToLocalChecked())->GetValue();
       }
   {%elsif cppClassName == 'Function'%}
   {%elsif cppClassName == 'Buffer'%}
diff --git a/test/tests/tree.js b/test/tests/tree.js
index e5272116d..98c5959e9 100644
--- a/test/tests/tree.js
+++ b/test/tests/tree.js
@@ -38,6 +38,24 @@ describe("Tree", function() {
     }).done(done);
   });
 
+  it("updates a tree", function () {
+    var repo = this.existingRepo;
+    var update = new NodeGit.TreeUpdate();
+    update.action = NodeGit.Tree.UPDATE.REMOVE;
+    update.path = "README.md";
+    return this.commit.getTree().then(function(tree) {
+        return tree.createUpdated(repo, 1, [update]);
+      })
+      .then(function(treeOid) {
+        return repo.getTree(treeOid);
+      })
+      .then(function(updatedTree) {
+        assert.throws(function () {
+          updatedTree.entryByName("README.md");
+        });
+      });
+  });
+
   it("walks its entries and returns the same entries on both progress and end",
   function() {
     var repo = this.repository;