diff --git a/src/config/zod-schema.typing-mode.test.ts b/src/config/zod-schema.typing-mode.test.ts
index 3070319fad7..c444fa6f644 100644
--- a/src/config/zod-schema.typing-mode.test.ts
+++ b/src/config/zod-schema.typing-mode.test.ts
@@ -13,7 +13,17 @@ describe("typing mode schema reuse", () => {
   });
 
   it("rejects unsupported typingMode values for session and agent defaults", () => {
-    expect(() => SessionSchema.parse({ typingMode: "always" })).toThrow();
-    expect(() => AgentDefaultsSchema.parse({ typingMode: "soon" })).toThrow();
+    const sessionResult = SessionSchema.safeParse({ typingMode: "always" });
+    const agentDefaultsResult = AgentDefaultsSchema.safeParse({ typingMode: "soon" });
+
+    expect(sessionResult.success).toBe(false);
+    expect(agentDefaultsResult.success).toBe(false);
+    if (sessionResult.success || agentDefaultsResult.success) {
+      throw new Error("Expected unsupported typingMode values to fail schema validation.");
+    }
+    expect(sessionResult.error.issues.map((issue) => issue.path.join("."))).toContain("typingMode");
+    expect(agentDefaultsResult.error.issues.map((issue) => issue.path.join("."))).toContain(
+      "typingMode",
+    );
   });
 });