diff --git a/lib/blocks.js b/lib/blocks.js
index 66113617..c74a278b 100644
--- a/lib/blocks.js
+++ b/lib/blocks.js
@@ -437,7 +437,7 @@ var blocks = {
var newlinePos = content.indexOf("\n");
var firstLine = content.slice(0, newlinePos);
var rest = content.slice(newlinePos + 1);
- block.info = unescapeString(firstLine.trim());
+ block.info = unescapeString(firstLine).trim();
block._literal = rest;
} else {
// indented
diff --git a/test/regression.txt b/test/regression.txt
index 1703e3e3..46b5e6bb 100644
--- a/test/regression.txt
+++ b/test/regression.txt
@@ -632,3 +632,36 @@ Entities inside autolinks (#263).
.
http://>
````````````````````````````````
+
+#255
+
+```````````````````````````````` example
+``` js
+```
+``` js
+```
+``` js
+```
+```js
+```
+```js
+```
+```js
+```
+```js a
+```
+```js a
+```
+```js a
+```
+.
+
+
+
+
+
+
+
+
+
+````````````````````````````````