diff --git a/scripts/test-live-shard.mjs b/scripts/test-live-shard.mjs
index de86f7019dc..bcd45e1655c 100644
--- a/scripts/test-live-shard.mjs
+++ b/scripts/test-live-shard.mjs
@@ -277,8 +277,6 @@ export function selectLiveShardFiles(shard, files = collectAllLiveTestFiles()) {
       return files.filter(isExtensionMediaMusicLiveTest);
     case "native-live-extensions-media-video":
       return files.filter(isExtensionMediaVideoLiveTest);
-    case "native-live-extensions-l-z":
-      return files.filter((file) => isExtensionInRange(file, "l", "z"));
     default:
       throw new Error(
         `Unknown live test shard '${shard}'. Expected one of: ${LIVE_TEST_SHARDS.join(", ")}`,
diff --git a/test/scripts/test-live-shard.test.ts b/test/scripts/test-live-shard.test.ts
index 2a4805e933d..57c1ef138cb 100644
--- a/test/scripts/test-live-shard.test.ts
+++ b/test/scripts/test-live-shard.test.ts
@@ -123,6 +123,9 @@ describe("scripts/test-live-shard", () => {
 
   it("rejects unknown shard names", () => {
     expect(() => selectLiveShardFiles("native-live-missing")).toThrow(/Unknown live test shard/u);
+    expect(() => selectLiveShardFiles("native-live-extensions-l-z")).toThrow(
+      /Unknown live test shard/u,
+    );
   });
 
   it("parses list mode and rejects unknown live shard options", () => {