diff --git a/lib/linguist/vendor.yml b/lib/linguist/vendor.yml
index e58e9270..14a1c99d 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)?/