diff --git a/test/unique-css.js b/test/unique-css.js
index <HASH>..<HASH> 100644
--- a/test/unique-css.js
+++ b/test/unique-css.js
@@ -149,3 +149,10 @@ test(
   '.one.two {} .one.two.three {}',
   '.one.two {} .one.two.three {}'
 );
+
+test(
+  'keyframe selectors',
+  css,
+  '@keyframes a {0% {} 100% {}} @keyframes b {0% {} 100% {}}',
+  '@keyframes a {0% {} 100% {}} @keyframes b {0% {} 100% {}}'
+);
Issue #<I>: Add test for expected keyframe behavior