diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9614647..6127e4a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
+# v0.6.4 - Jan 2, 2016
+
+- Add the `src/runtime.cr` file so you can now properly `require "./duktape/runtime"` once `shards` does its thing.
+- Actually update the version in `shard.yml` (my mistake - sorry!).
+
 # v0.6.3 - Jan 2, 2016
 
+**NOTE - This release has issues, use `0.6.4` instead.**
+
 - Rework the internal require order and `duktape/base`.
 - Add a `Duktape::Runtime` class that lessens the need for low-level API calls for many use-cases. This must be required using `require "duktape/runtime"`.
 
diff --git a/README.md b/README.md
index c3897aa..de7e439 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ version: 1.0.0 # your project's version
 dependencies:
   duktape:
     github: jessedoyle/duktape.cr
-    version: ~> 0.6.3
+    version: ~> 0.6.4
 ```
 
 then execute:
diff --git a/shard.yml b/shard.yml
index becc050..7cc5c75 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,5 @@
 name: duktape.cr
-version: 0.6.2
+version: 0.6.4
 
 authors:
   - Jesse Doyle <jdoyle@ualberta.ca>
diff --git a/src/duktape/runtime.cr b/src/duktape/runtime.cr
index d80fc8e..4820df3 100644
--- a/src/duktape/runtime.cr
+++ b/src/duktape/runtime.cr
@@ -17,7 +17,7 @@ module Duktape
   #
   # ```
   # rt = Duktape::Runtime.new
-  # rt.eval("Math.PI") #=> 3.14159
+  # rt.eval("Math.PI") # => 3.14159
   # ```
   #
   # The Runtime class also allows for javascript initialization code:
@@ -29,7 +29,7 @@ module Duktape
   #   JS
   # end
   #
-  # rt.eval("add_one", 42) #=> 43
+  # rt.eval("add_one", 42) # => 43
   # ```
   #
   # The Runtime class is not loaded by default and must be required before
@@ -85,8 +85,8 @@ module Duktape
     # The property string can include parent objects:
     #
     # ```
-    #  rt = Duktape::Runtime.new
-    #  rt.call("JSON.stringify", 123) #=> "123"
+    # rt = Duktape::Runtime.new
+    # rt.call("JSON.stringify", 123) # => "123"
     # ```
     #
     def call(prop : String, *args)
@@ -97,8 +97,8 @@ module Duktape
     # array of strings with the supplied arguments.
     #
     # ```
-    #  rt = Duktape::Runtime.new
-    #  rt.call(["Math", "PI"]) #=> 3.14159
+    # rt = Duktape::Runtime.new
+    # rt.call(["Math", "PI"]) # => 3.14159
     # ```
     #
     def call(props : Array(String), *args)
@@ -141,7 +141,7 @@ module Duktape
     #
     # ```
     # rt = Duktape::Runtime.new
-    # rt.exec("1 + 1") #=> nil
+    # rt.exec("1 + 1") # => nil
     # ```
     #
     def exec(source : String)
diff --git a/src/duktape/version.cr b/src/duktape/version.cr
index 0f3d334..cebdefc 100644
--- a/src/duktape/version.cr
+++ b/src/duktape/version.cr
@@ -16,7 +16,7 @@ module Duktape
   module VERSION
     MAJOR = 0
     MINOR = 6
-    TINY  = 3
+    TINY  = 4
     PRE   = nil
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join "."
diff --git a/src/runtime.cr b/src/runtime.cr
new file mode 100644
index 0000000..27d9134
--- /dev/null
+++ b/src/runtime.cr
@@ -0,0 +1,7 @@
+# runtime.cr: simplified Duktape call/eval interface
+#
+# Copyright (c) 2016 Jesse Doyle. All rights reserved.
+#
+# This is free software. Please see LICENSE for details.
+
+require "./duktape/runtime"