diff --git a/lib/linguist/vendor.yml b/lib/linguist/vendor.yml
index e141eff8..490a910f 100644
--- a/lib/linguist/vendor.yml
+++ b/lib/linguist/vendor.yml
@@ -242,3 +242,7 @@
 # Typesafe Activator
 - (^|/)activator$
 - (^|/)activator\.bat$
+
+# ProGuard
+- proguard.pro
+- proguard-rules.pro