diff --git a/test/css/samples/css-vars/expected.css b/test/css/samples/css-vars/expected.css
index 3c252b8d05..d9ff79a2a9 100644
--- a/test/css/samples/css-vars/expected.css
+++ b/test/css/samples/css-vars/expected.css
@@ -1 +1 @@
-:root{--root-test:20}div.svelte-xyz{--test:10}div.svelte-xyz{--foo: }
\ No newline at end of file
+:root{--root-test:20}div.svelte-xyz{--test:10}div.svelte-xyz{--foo: ;--bar: !important}
\ No newline at end of file
diff --git a/test/css/samples/css-vars/input.svelte b/test/css/samples/css-vars/input.svelte
index 3679e0d453..4a969428ab 100644
--- a/test/css/samples/css-vars/input.svelte
+++ b/test/css/samples/css-vars/input.svelte
@@ -10,5 +10,6 @@
 
 	div {
 		--foo: ;
+		--bar: !important;
 	}
 </style>