diff --git a/package.json b/package.json
index 652d869..70593f4 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "babel-core": "^5.0.0",
     "brfs": "^1.4.0",
     "concat-stream": "^1.5.0",
-    "doctrine": "^0.7.0",
+    "doctrine": "^0.7.1",
     "documentation-theme-default": "^1.0.0",
     "extend": "^3.0.0",
     "get-comments": "^1.0.1",
diff --git a/test/fixture/optional.input.js b/test/fixture/optional.input.js
index 22f0b80..2f8d1f2 100644
--- a/test/fixture/optional.input.js
+++ b/test/fixture/optional.input.js
@@ -4,6 +4,7 @@
  * @param {string} address - An IPv6 address string
  * @param {number} [groups=8] - How many octets to parse
  * @param {?number} third - A third argument
+ * @param {Array} [foo=[1]] to properly be parsed
  * @example
  * var address = new Address6('2001::/32');
  */
diff --git a/test/fixture/optional.output.custom.md b/test/fixture/optional.output.custom.md
index 30d06ec..fe4a2e3 100644
--- a/test/fixture/optional.output.custom.md
+++ b/test/fixture/optional.output.custom.md
@@ -7,6 +7,7 @@ Represents an IPv6 address
 -   `address` **string** An IPv6 address string
 -   `groups` **[number]** How many octets to parse (optional, default `8`)
 -   `third` **[number]** A third argument
+-   `foo` **[Array]** to properly be parsed (optional, default `[1]`)
 
 **Examples**
 
diff --git a/test/fixture/optional.output.json b/test/fixture/optional.output.json
index 9ed6685..564d65d 100644
--- a/test/fixture/optional.output.json
+++ b/test/fixture/optional.output.json
@@ -47,10 +47,24 @@
         },
         "name": "third"
       },
+      {
+        "title": "param",
+        "description": "to properly be parsed",
+        "lineNumber": 6,
+        "type": {
+          "type": "OptionalType",
+          "expression": {
+            "type": "NameExpression",
+            "name": "Array"
+          }
+        },
+        "name": "foo",
+        "default": "[1]"
+      },
       {
         "title": "example",
         "description": "var address = new Address6('2001::/32');",
-        "lineNumber": 6
+        "lineNumber": 7
       }
     ],
     "loc": {
@@ -59,7 +73,7 @@
         "column": 0
       },
       "end": {
-        "line": 9,
+        "line": 10,
         "column": 3
       }
     },
@@ -70,7 +84,7 @@
           "column": 0
         },
         "end": {
-          "line": 10,
+          "line": 11,
           "column": 0
         }
       }
@@ -117,6 +131,20 @@
           "prefix": true
         },
         "name": "third"
+      },
+      {
+        "title": "param",
+        "description": "to properly be parsed",
+        "lineNumber": 6,
+        "type": {
+          "type": "OptionalType",
+          "expression": {
+            "type": "NameExpression",
+            "name": "Array"
+          }
+        },
+        "name": "foo",
+        "default": "[1]"
       }
     ],
     "examples": [
diff --git a/test/fixture/optional.output.md b/test/fixture/optional.output.md
index 30d06ec..fe4a2e3 100644
--- a/test/fixture/optional.output.md
+++ b/test/fixture/optional.output.md
@@ -7,6 +7,7 @@ Represents an IPv6 address
 -   `address` **string** An IPv6 address string
 -   `groups` **[number]** How many octets to parse (optional, default `8`)
 -   `third` **[number]** A third argument
+-   `foo` **[Array]** to properly be parsed (optional, default `[1]`)
 
 **Examples**
 
diff --git a/test/fixture/optional.output.md.json b/test/fixture/optional.output.md.json
index 7e95c25..38bd40b 100644
--- a/test/fixture/optional.output.md.json
+++ b/test/fixture/optional.output.md.json
@@ -257,6 +257,85 @@
               ]
             }
           ]
+        },
+        {
+          "type": "listItem",
+          "children": [
+            {
+              "type": "paragraph",
+              "children": [
+                {
+                  "type": "inlineCode",
+                  "value": "foo"
+                },
+                {
+                  "type": "text",
+                  "value": " "
+                },
+                {
+                  "type": "strong",
+                  "children": [
+                    {
+                      "type": "text",
+                      "value": "[Array]"
+                    }
+                  ]
+                },
+                {
+                  "type": "text",
+                  "value": " "
+                },
+                {
+                  "type": "paragraph",
+                  "children": [
+                    {
+                      "type": "text",
+                      "value": "to properly be parsed",
+                      "position": {
+                        "start": {
+                          "line": 1,
+                          "column": 1
+                        },
+                        "end": {
+                          "line": 1,
+                          "column": 22
+                        },
+                        "indent": []
+                      }
+                    }
+                  ],
+                  "position": {
+                    "start": {
+                      "line": 1,
+                      "column": 1
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 22
+                    },
+                    "indent": []
+                  }
+                },
+                {
+                  "type": "paragraph",
+                  "children": [
+                    {
+                      "type": "text",
+                      "value": " (optional, default "
+                    },
+                    {
+                      "type": "inlineCode",
+                      "value": "[1]"
+                    },
+                    {
+                      "type": "text",
+                      "value": ")"
+                    }
+                  ]
+                }
+              ]
+            }
+          ]
         }
       ]
     },