diff --git a/lib/markdown2.py b/lib/markdown2.py
index 3c0348f5..ad1c0552 100755
--- a/lib/markdown2.py
+++ b/lib/markdown2.py
@@ -1005,9 +1005,9 @@ def _sanitize_html(self, s):
           \(            # literal paren
             [ \t]*
             (?P<url>            # \1
-                <.*?>
+                <[^ \t'"]*>
                 |
-                .*?
+                [^ \t'"]*
             )
             [ \t]*
             (                   # \2
diff --git a/test/markdowntest-cases/Parens in urls.html b/test/markdowntest-cases/Parens in urls.html
new file mode 100644
index 00000000..d9814bc4
--- /dev/null
+++ b/test/markdowntest-cases/Parens in urls.html	
@@ -0,0 +1,5 @@
+<p><a href="/ur(inparen)l/">link text</a></p>
+
+<p><a href="/ur(inparen)l/" title="title">link text</a></p>
+
+<p><a href="/ur(inparen)l/" title="title">link text</a></p>
diff --git a/test/markdowntest-cases/Parens in urls.text b/test/markdowntest-cases/Parens in urls.text
new file mode 100644
index 00000000..64ef759d
--- /dev/null
+++ b/test/markdowntest-cases/Parens in urls.text	
@@ -0,0 +1,5 @@
+[link text](/ur(inparen)l/)
+
+[link text](/ur(inparen)l/ "title")
+
+[link text](/ur(inparen)l/ 'title')