diff --git a/spec/unit/rust-crypto/recovery-key.spec.ts b/spec/unit/rust-crypto/recovery-key.spec.ts
index 8e45952d7fd..ab48a78f99a 100644
--- a/spec/unit/rust-crypto/recovery-key.spec.ts
+++ b/spec/unit/rust-crypto/recovery-key.spec.ts
@@ -18,22 +18,26 @@ import { decodeRecoveryKey, encodeRecoveryKey } from "../../../src/crypto-api";
 
 describe("recovery key", () => {
     describe("decodeRecoveryKey", () => {
-        it("should thrown an incorrect parity", () => {
-            expect(() => decodeRecoveryKey("alice")).toThrow("Incorrect parity");
-        });
-
         it("should thrown an incorrect length error", () => {
             const key = [0, 1];
-            const encodedKey = encodeRecoveryKey(key);
+            const encodedKey = encodeRecoveryKey(key)!;
+
+            expect(() => decodeRecoveryKey(encodedKey)).toThrow("Incorrect length");
+        });
+
+        it("should thrown an incorrect parity", () => {
+            const key = Array.from({ length: 32 }, (_, i) => i);
+            let encodedKey = encodeRecoveryKey(key)!;
+            encodedKey = encodedKey.replace("EsSz", "EsSZ");
 
-            expect(() => decodeRecoveryKey(encodedKey!)).toThrow("Incorrect length");
+            expect(() => decodeRecoveryKey(encodedKey!)).toThrow("Incorrect parity");
         });
 
         it("should decode a valid encoded key", () => {
             const key = Array.from({ length: 32 }, (_, i) => i);
-            const encodedKey = encodeRecoveryKey(key);
+            const encodedKey = encodeRecoveryKey(key)!;
 
-            expect(decodeRecoveryKey(encodedKey!)).toEqual(new Uint8Array(key));
+            expect(decodeRecoveryKey(encodedKey)).toEqual(new Uint8Array(key));
         });
     });
 });