diff --git a/compiler/parse/tests/snapshots/pass/parse_alias.expr.result-ast b/compiler/parse/tests/snapshots/pass/parse_alias.expr.result-ast
index f23f7883e8..f0006fe0da 100644
--- a/compiler/parse/tests/snapshots/pass/parse_alias.expr.result-ast
+++ b/compiler/parse/tests/snapshots/pass/parse_alias.expr.result-ast
@@ -1,15 +1,17 @@
 Defs(
     [
         |L 0-0, C 0-26| Alias {
-            name: |L 0-0, C 0-4| "Blah",
-            vars: [
-                |L 0-0, C 5-6| Identifier(
-                    "a",
-                ),
-                |L 0-0, C 7-8| Identifier(
-                    "b",
-                ),
-            ],
+            header: AliasHeader {
+                name: |L 0-0, C 0-4| "Blah",
+                vars: [
+                    |L 0-0, C 5-6| Identifier(
+                        "a",
+                    ),
+                    |L 0-0, C 7-8| Identifier(
+                        "b",
+                    ),
+                ],
+            },
             ann: |L 0-0, C 11-26| Apply(
                 "Foo.Bar",
                 "Baz",
diff --git a/compiler/parse/tests/snapshots/pass/parse_as_ann.expr.result-ast b/compiler/parse/tests/snapshots/pass/parse_as_ann.expr.result-ast
index 7942e5c741..edefb5bf4f 100644
--- a/compiler/parse/tests/snapshots/pass/parse_as_ann.expr.result-ast
+++ b/compiler/parse/tests/snapshots/pass/parse_as_ann.expr.result-ast
@@ -4,7 +4,7 @@ Defs(
             |L 0-0, C 0-3| Identifier(
                 "foo",
             ),
-            |L 0-0, C 25-33| As(
+            |L 0-0, C 6-33| As(
                 |L 0-0, C 6-21| Apply(
                     "Foo.Bar",
                     "Baz",
@@ -18,13 +18,17 @@ Defs(
                     ],
                 ),
                 [],
-                (
-                    "Blah",
-                    [
-                        |L 0-0, C 30-31| "a",
-                        |L 0-0, C 32-33| "b",
+                AliasHeader {
+                    name: |L 0-0, C 25-29| "Blah",
+                    vars: [
+                        |L 0-0, C 30-31| Identifier(
+                            "a",
+                        ),
+                        |L 0-0, C 32-33| Identifier(
+                            "b",
+                        ),
                     ],
-                ),
+                },
             ),
         ),
     ],