diff --git a/README.md b/README.md
index 03803ac..60c203d 100644
--- a/README.md
+++ b/README.md
@@ -121,6 +121,9 @@ Gamma of image (0 if not specified)
 Changelog
 ============
 
+### 0.4.0 - Jun 05 2013
+  - fixed reading of destroyed input stream
+
 ### 0.4.0-alpha - 29 Nov 2012
   - added zlib deflateStrategy option, default to Z_RLE (by pdpotter)
   - added possibility to use multiple filters (by pdpotter, modified by niegowski)
diff --git a/lib/chunkstream.js b/lib/chunkstream.js
index f3e1352..e8ddac5 100755
--- a/lib/chunkstream.js
+++ b/lib/chunkstream.js
@@ -125,7 +125,7 @@ ChunkStream.prototype.destroy = function() {
 ChunkStream.prototype._process = function() {
 
     // as long as there is any data and read requests
-    while (this._buffered > 0 && this._reads.length > 0) {
+    while (this._buffered > 0 && this._reads && this._reads.length > 0) {
 
         var read = this._reads[0];
 
diff --git a/package.json b/package.json
index 7269846..fe899b5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "pngjs",
-    "version": "0.4.0-alpha",
+    "version": "0.4.0",
     "description": "Simple PNG encoder/decoder",
     "author": "Kuba Niegowski",
     "contributors": [],