diff --git a/generate/input/descriptor.json b/generate/input/descriptor.json
@@ -199,7 +199,18 @@
           "ignore": true
         },
         "git_checkout_tree": {
-          "ignore": true
+          "args": {
+            "treeish": {
+              "isOptional": true
+            },
+            "opts": {
+              "isOptional": true
+            }
+          },
+          "isAsync": true,
+          "return": {
+            "isErrorCode": true
+          }
         }
       }
     },

diff --git a/lib/checkout.js b/lib/checkout.js
@@ -3,11 +3,12 @@ var normalizeOptions = require("./util/normalize_options");
 
 var Checkout = NodeGit.Checkout;
 var head = Checkout.head;
+var tree = Checkout.tree;
 
 /**
 * Patch head checkout to automatically coerce objects.
 *
-* @param repo
+* @param url
 * @param options
 */
 Checkout.head = function(url, options) {
@@ -16,5 +17,17 @@ Checkout.head = function(url, options) {
   return head.call(this, url, options);
 };
 
+/**
+* Patch tree checkout to automatically coerce objects.
+*
+* @param repo
+* @param treeish
+* @param options
+*/
+Checkout.tree = function(repo, treeish, options) {
+  options = normalizeOptions(options, NodeGit.CheckoutOptions);
+
+  return tree.call(this, repo, treeish, options);
+};
 
 module.exports = Checkout;
diff --git a/test/tests/checkout.js b/test/tests/checkout.js
@@ -31,4 +31,16 @@ describe("Checkout", function() {
       assert.ok(~packageJson.indexOf("\"ejs\": \"~1.0.0\","));
     });
   });
+
+  it("can checkout by tree", function() {
+    var test = this;
+
+    return test.repo.getTagByName("annotated-tag").then(function(tag) {
+      return Checkout.tree(test.repo, test.tag);
+    }).then(function() {
+      return test.repo.getHeadCommit();
+    }).then(function(commit) {
+      assert.equal(commit, "32789a79e71fbc9e04d3eff7425e1771eb595150");
+    });
+  });
 });