diff --git a/testing/geckodriver/src/capabilities.rs b/testing/geckodriver/src/capabilities.rs
index f24399ede2e5b..1dda8fc3d1b3c 100644
--- a/testing/geckodriver/src/capabilities.rs
+++ b/testing/geckodriver/src/capabilities.rs
@@ -926,6 +926,7 @@ x
 .
 major
 >
+=
 52
 )
 }