diff --git a/Microsoft/HeadingPunctuation.yml b/Microsoft/HeadingPunctuation.yml
index eea912a..4954cb1 100644
--- a/Microsoft/HeadingPunctuation.yml
+++ b/Microsoft/HeadingPunctuation.yml
@@ -10,4 +10,4 @@ action:
     - trim_right
     - ".?!"
 tokens:
-  - '[a-z][.?!](?:\s|$)'
+  - "[a-z][.?!]$"
diff --git a/fixtures/Headings/test.md b/fixtures/Headings/test.md
index ae67434..eb9cc2b 100644
--- a/fixtures/Headings/test.md
+++ b/fixtures/Headings/test.md
@@ -13,3 +13,6 @@
 ## Find the thief: Introduction
 
 # 8. Do step eight
+
+# Another heading something vs. cool
+