diff --git a/Parsedown.php b/Parsedown.php
index fd05e80..19dd2cb 100755
--- a/Parsedown.php
+++ b/Parsedown.php
@@ -1199,7 +1199,7 @@ class Parsedown
             return;
         }
 
-        if (preg_match('/^[(]((?:[^ (]|[(][^ )]+[)])+)(?:[ ]+("[^"]+"|\'[^\']+\'))?[)]/', $remainder, $matches))
+        if (preg_match('/^[(]((?:[^ ()]|[(][^ )]+[)])+)(?:[ ]+("[^"]+"|\'[^\']+\'))?[)]/', $remainder, $matches))
         {
             $Element['attributes']['href'] = $matches[1];
 
diff --git a/test/data/inline_link.html b/test/data/inline_link.html
index 0a0e0a7..5ad564a 100644
--- a/test/data/inline_link.html
+++ b/test/data/inline_link.html
@@ -1,4 +1,6 @@
-<p><a href="http://example.com">link</a> and <a href="/url-with-(parentheses)">another link</a></p>
+<p><a href="http://example.com">link</a></p>
+<p><a href="/url-(parentheses)">link</a> with parentheses in URL </p>
+<p>(<a href="/index.php">link</a>) in parentheses</p>
 <p><a href="http://example.com"><code>link</code></a></p>
 <p><a href="http://example.com"><img src="http://parsedown.org/md.png" alt="MD Logo" /></a></p>
 <p><a href="http://example.com"><img src="http://parsedown.org/md.png" alt="MD Logo" /> and text</a></p>
\ No newline at end of file
diff --git a/test/data/inline_link.md b/test/data/inline_link.md
index bef9031..6bac0b3 100644
--- a/test/data/inline_link.md
+++ b/test/data/inline_link.md
@@ -1,4 +1,8 @@
-[link](http://example.com) and [another link](/url-with-(parentheses))
+[link](http://example.com)
+
+[link](/url-(parentheses)) with parentheses in URL 
+
+([link](/index.php)) in parentheses
 
 [`link`](http://example.com)