diff --git a/test/scripts/bench-gateway-restart.test.ts b/test/scripts/bench-gateway-restart.test.ts
index b95ad21186c0..828fc8d5965a 100644
--- a/test/scripts/bench-gateway-restart.test.ts
+++ b/test/scripts/bench-gateway-restart.test.ts
@@ -35,7 +35,6 @@ function readRestartIntentRow(env: NodeJS.ProcessEnv) {
 describe("gateway restart benchmark script", () => {
   let helpResult: ReturnType<typeof spawnSync>;
   let unknownArgsResult: ReturnType<typeof spawnSync>;
-  let duplicateCaseResult: ReturnType<typeof spawnSync>;
 
   beforeAll(() => {
     helpResult = spawnSync(
@@ -62,26 +61,6 @@ describe("gateway restart benchmark script", () => {
         },
       },
     );
-    duplicateCaseResult = spawnSync(
-      process.execPath,
-      [
-        "--import",
-        "tsx",
-        "scripts/bench-gateway-restart.ts",
-        "--case",
-        "skipChannels",
-        "--case",
-        "skipChannels",
-      ],
-      {
-        cwd: process.cwd(),
-        encoding: "utf8",
-        env: {
-          ...process.env,
-          NODE_NO_WARNINGS: "1",
-        },
-      },
-    );
   });
 
   it("prints help without running benchmark cases", () => {
@@ -144,13 +123,6 @@ describe("gateway restart benchmark script", () => {
     expect(unknownArgsResult.stderr).not.toContain("\n    at ");
   });
 
-  it("reports duplicate benchmark cases without a stack trace", () => {
-    expect(duplicateCaseResult.status).toBe(1);
-    expect(duplicateCaseResult.stdout).toBe("");
-    expect(duplicateCaseResult.stderr.trim()).toBe('Duplicate --case "skipChannels"');
-    expect(duplicateCaseResult.stderr).not.toContain("\n    at ");
-  });
-
   it("guards the SIGUSR1 restart benchmark on Windows", () => {
     expect(() => testing.ensureSupportedRestartPlatform("linux")).not.toThrow();
     expect(() => testing.ensureSupportedRestartPlatform("darwin")).not.toThrow();