diff --git a/src/core/stream.js b/src/core/stream.js
index 35dc4fbdb..7567081c9 100644
--- a/src/core/stream.js
+++ b/src/core/stream.js
@@ -508,12 +508,18 @@ var FlateStream = (function FlateStreamClosure() {
       var buffer = this.ensureBuffer(bufferLength + blockLen);
       var end = bufferLength + blockLen;
       this.bufferLength = end;
-      for (var n = bufferLength; n < end; ++n) {
-        if (typeof (b = bytes[bytesPos++]) == 'undefined') {
+      if (blockLen === 0) {
+        if (typeof bytes[bytesPos] == 'undefined') {
           this.eof = true;
-          break;
         }
-        buffer[n] = b;
+      } else {
+        for (var n = bufferLength; n < end; ++n) {
+          if (typeof (b = bytes[bytesPos++]) == 'undefined') {
+            this.eof = true;
+            break;
+          }
+          buffer[n] = b;
+        }
       }
       this.bytesPos = bytesPos;
       return;
diff --git a/test/pdfs/.gitignore b/test/pdfs/.gitignore
index 76685349d..24268df1d 100644
--- a/test/pdfs/.gitignore
+++ b/test/pdfs/.gitignore
@@ -62,3 +62,4 @@
 !issue3371.pdf
 !issue2956.pdf
 !bug946506.pdf
+!issue3885.pdf
diff --git a/test/pdfs/issue3885.pdf b/test/pdfs/issue3885.pdf
new file mode 100644
index 000000000..183294ccf
Binary files /dev/null and b/test/pdfs/issue3885.pdf differ
diff --git a/test/test_manifest.json b/test/test_manifest.json
index 3bec7f41a..ea20da375 100644
--- a/test/test_manifest.json
+++ b/test/test_manifest.json
@@ -61,6 +61,14 @@
        "lastPage": 2,
        "type": "eq"
     },
+    {  "id": "issue3885",
+       "file": "pdfs/issue3885.pdf",
+       "md5": "319c998910453bc44d40c7748cd2cb79",
+       "rounds": 1,
+       "firstPage": 1,
+       "lastPage": 1,
+       "type": "eq"
+    },
     {  "id": "issue2833",
        "file": "pdfs/issue2833.pdf",
        "md5": "7bc6e17c41586155c188d7408bcb9ab5",