diff --git a/lib/linguist/vendor.yml b/lib/linguist/vendor.yml
index 13b7eeb2..1da5b60c 100644
--- a/lib/linguist/vendor.yml
+++ b/lib/linguist/vendor.yml
@@ -44,8 +44,8 @@
 - normalize.css
 
 # Bourbon SCSS
-- (^|/)[Bb]ourbon/*\.css
-- (^|/)[Bb]ourbon/*\.scss
+- (^|/)[Bb]ourbon/.*\.css$
+- (^|/)[Bb]ourbon/.*\.scss$
 
 # Vendored dependencies
 - thirdparty/