diff --git a/packages/coding-agent/test/extensions-discovery.test.ts b/packages/coding-agent/test/extensions-discovery.test.ts
index 52867e4a..a8c32fcd 100644
--- a/packages/coding-agent/test/extensions-discovery.test.ts
+++ b/packages/coding-agent/test/extensions-discovery.test.ts
@@ -441,7 +441,7 @@ describe("extensions discovery", () => {
 
 		expect(result.errors).toHaveLength(0);
 		expect(result.extensions).toHaveLength(1);
-		expect(result.extensions[0].flags.has("--my-flag")).toBe(true);
+		expect(result.extensions[0].flags.has("my-flag")).toBe(true);
 	});
 
 	it("loadExtensions only loads explicit paths without discovery", async () => {
diff --git a/packages/coding-agent/test/extensions-runner.test.ts b/packages/coding-agent/test/extensions-runner.test.ts
index 26b17f5d..daa6cc98 100644
--- a/packages/coding-agent/test/extensions-runner.test.ts
+++ b/packages/coding-agent/test/extensions-runner.test.ts
@@ -225,7 +225,7 @@ describe("ExtensionRunner", () => {
 			const runner = new ExtensionRunner(result.extensions, result.runtime, tempDir, sessionManager, modelRegistry);
 			const flags = runner.getFlags();
 
-			expect(flags.has("--my-flag")).toBe(true);
+			expect(flags.has("my-flag")).toBe(true);
 		});
 
 		it("can set flag values", async () => {