diff --git a/lib/linguist/vendor.yml b/lib/linguist/vendor.yml
index 9be4afda..6c9b7e7d 100644
--- a/lib/linguist/vendor.yml
+++ b/lib/linguist/vendor.yml
@@ -88,3 +88,6 @@
 
 # NuGet
 - ^[Pp]ackages/
+
+# ExtJS
+- (^|/)ext(js)?(-\d\.\d\.\d)?(-gpl)?/