diff --git a/test/rules/sort-union-types.test.ts b/test/rules/sort-union-types.test.ts
index 13cad45fd..b3d03846f 100644
--- a/test/rules/sort-union-types.test.ts
+++ b/test/rules/sort-union-types.test.ts
@@ -1053,6 +1053,16 @@ describe(ruleName, () => {
                     | B
               `,
               output: [
+                dedent`
+                  type T =
+                    (() => null)
+
+
+                   | B
+                  | Y
+
+                      | Z
+                `,
                 dedent`
                   type T =
                     (() => null)
@@ -1108,6 +1118,15 @@ describe(ruleName, () => {
                   type T =
                     (() => null)
 
+
+                   | Y
+                  | Z
+                      | "A"
+                  `,
+                dedent`
+                  type T =
+                    (() => null)
+
                    | Y
                   | Z