diff --git a/test/fixtures/multiple/input.css b/test/fixtures/multiple/input.css
new file mode 100644
index 0000000..75fe803
--- /dev/null
+++ b/test/fixtures/multiple/input.css
@@ -0,0 +1,5 @@
+@custom-selector :--foo .foo;
+
+:--foo, :--foo.bar {
+  color: white;
+}
diff --git a/test/fixtures/multiple/output.css b/test/fixtures/multiple/output.css
new file mode 100644
index 0000000..3da3e23
--- /dev/null
+++ b/test/fixtures/multiple/output.css
@@ -0,0 +1,3 @@
+.foo, .foo.bar {
+  color: white;
+}
diff --git a/test/fixtures/similar-matches/input.css b/test/fixtures/similar-matches/input.css
index 2703673..afa9056 100644
--- a/test/fixtures/similar-matches/input.css
+++ b/test/fixtures/similar-matches/input.css
@@ -1,11 +1,11 @@
 @custom-selector :--foo h1;
-@custom-selector :--foo-bar-baz h4 h5 h6;
+@custom-selector :--foo-bar-baz h4, h5, h6;
 
 :--foo {
   color: red;
 }
 
-:--foo-bar-baz {
+:--foo-bar-baz > span {
   color: blue;
 }
 
diff --git a/test/fixtures/similar-matches/output.css b/test/fixtures/similar-matches/output.css
index 2213e6b..f4b0f33 100644
--- a/test/fixtures/similar-matches/output.css
+++ b/test/fixtures/similar-matches/output.css
@@ -2,7 +2,7 @@ h1 {
   color: red;
 }
 
-h4 h5 h6 {
+h4 > span, h5 > span, h6 > span {
   color: blue;
 }
 
diff --git a/test/index.js b/test/index.js
index 15e6143..8b9a240 100644
--- a/test/index.js
+++ b/test/index.js
@@ -54,5 +54,7 @@ test("@custom-selector", function(t) {
     }
   })
 
+  compareFixtures(t, "multiple", "Should transform multiple selectors")
+
   t.end()
 })