diff --git a/src/__fixtures__/tests.ts b/src/__fixtures__/tests.ts
index d49454f5..ce019be6 100644
--- a/src/__fixtures__/tests.ts
+++ b/src/__fixtures__/tests.ts
@@ -456,4 +456,31 @@ export const tests: [string, Selector[][], string][] = [
         ],
         "multiple selectors",
     ],
+
+    [
+        ':host(h1, p)',
+        [
+            [
+                {
+                    type: "pseudo",
+                    name: "host",
+                    data: [
+                        [
+                            {
+                                "type":"tag",
+                                "name":"h1"
+                            }
+                        ],
+                        [
+                            {
+                                "type":"tag",
+                                "name":"p"
+                            }
+                        ]
+                    ]
+                },
+            ],
+        ],
+        "pseudo selector with data",
+    ]
 ];
diff --git a/src/parse.ts b/src/parse.ts
index bdde45df..5153e7bb 100644
--- a/src/parse.ts
+++ b/src/parse.ts
@@ -96,7 +96,7 @@ const attribSelectors: { [key: string]: [string, AttributeAction] } = {
 };
 
 // Pseudos, whose data property is parsed as well.
-const unpackPseudos = new Set(["has", "not", "matches", "is"]);
+const unpackPseudos = new Set(["has", "not", "matches", "is", "host", "host-context"]);
 
 const stripQuotesFromPseudos = new Set(["contains", "icontains"]);