diff --git a/.prettierignore b/.prettierignore
index 004f0aef7d..5c3aa6d884 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -28,3 +28,6 @@ src/vector/modernizr.js
 
 # This file is owned, parsed, and generated by allchange, which doesn't comply with prettier
 /CHANGELOG.md
+
+# Downloaded and already minified
+res/jitsi_external_api.min.js