diff --git a/org_mode_samples/object/plain_link/with_parenthesis.org b/org_mode_samples/object/plain_link/with_parenthesis.org
index b10448a..064f905 100644
--- a/org_mode_samples/object/plain_link/with_parenthesis.org
+++ b/org_mode_samples/object/plain_link/with_parenthesis.org
@@ -1 +1,8 @@
+# Should be a link:
 https://en.wikipedia.org/wiki/Shebang_(Unix)
+
+# No closing parenthesis, so link ends at underscore.
+https://en.wikipedia.org/wiki/Shebang_(Unix
+
+# Parenthesis only allowed to depth of 2 so link ends at underscore.
+https://en.wikipedia.org/wiki/Shebang_(((Unix)))