diff --git a/highlighters/main/test-data/assign.zsh b/highlighters/main/test-data/assign.zsh
index 7e18731..713a5f2 100644
--- a/highlighters/main/test-data/assign.zsh
+++ b/highlighters/main/test-data/assign.zsh
@@ -33,5 +33,6 @@ expected_region_highlight=(
   "1 3 assign" # A=1
   "5 7 assign" # b=(
   "8 12 double-quoted-argument" # "foo"
+  "14 16 default" # bar
   "17 17 assign" # )
 )