diff --git a/lib/6to5/transformers/constants.js b/lib/6to5/transformers/constants.js
index 0d1801b56c..6df3a4dbfe 100644
--- a/lib/6to5/transformers/constants.js
+++ b/lib/6to5/transformers/constants.js
@@ -18,11 +18,33 @@ exports.ForStatement = function (node) {
   _.each(node.body, function (child) {
     if (child && child.type === "VariableDeclaration" && child.kind === "const") {
       _.each(child.declarations, function (declar) {
-        var name = declar.id.name;
-        check(declar, name);
+        var search = [declar.id];
+        var names  = [];
+
+        while (search.length) {
+          var id = search.shift();
+
+          if (id.type === "Identifier") {
+            names.push(id.name);
+          } else if (id.type === "ArrayPattern") {
+            _.each(id.elements, function (elem) {
+              search.push(elem);
+            });
+          } else if (id.type === "ObjectPattern") {
+            _.each(id.properties, function (prop) {
+              search.push(prop.value);
+            });
+          } else {
+            throw new Error("unknown node " + id.type);
+          }
+        }
+
+        _.each(names, function (name) {
+          check(declar, name);
+          constants.push(name);
+        });
 
         declar._ignoreConstant = true;
-        constants.push(name);
       });
       child.kind = "let";
     }
diff --git a/test/fixtures/syntax/constants/destructuring-assignment/actual.js b/test/fixtures/syntax/constants/destructuring-assignment/actual.js
new file mode 100644
index 0000000000..b08c16fd90
--- /dev/null
+++ b/test/fixtures/syntax/constants/destructuring-assignment/actual.js
@@ -0,0 +1,2 @@
+const [a, b] = [1, 2];
+a = 3;
diff --git a/test/fixtures/syntax/constants/destructuring-assignment/options.json b/test/fixtures/syntax/constants/destructuring-assignment/options.json
new file mode 100644
index 0000000000..feeb18e277
--- /dev/null
+++ b/test/fixtures/syntax/constants/destructuring-assignment/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "a is read-only"
+}
diff --git a/test/fixtures/syntax/constants/destructuring/actual.js b/test/fixtures/syntax/constants/destructuring/actual.js
new file mode 100644
index 0000000000..85d5aa61a9
--- /dev/null
+++ b/test/fixtures/syntax/constants/destructuring/actual.js
@@ -0,0 +1,4 @@
+const [a, b] = [1, 2];
+const [c, d] = [3, 4];
+const { e, f } = { e: 5, f: 6 };
+const { a: g, b: h } = { a: 7, b: 8 };
diff --git a/test/fixtures/syntax/constants/destructuring/expected.js b/test/fixtures/syntax/constants/destructuring/expected.js
new file mode 100644
index 0000000000..3e5d42e210
--- /dev/null
+++ b/test/fixtures/syntax/constants/destructuring/expected.js
@@ -0,0 +1,23 @@
+(function () {
+  var _ref = [1, 2];
+  var a = _ref[0];
+  var b = _ref[1];
+
+  var _ref2 = [3, 4];
+  var c = _ref2[0];
+  var d = _ref2[1];
+
+  var _ref3 = {
+    e: 5,
+    f: 6
+  };
+  var e = _ref3.e;
+  var f = _ref3.f;
+
+  var _ref4 = {
+    a: 7,
+    b: 8
+  };
+  var g = _ref4.a;
+  var h = _ref4.b;
+})();