diff --git a/packages/passkey/src/client.ts b/packages/passkey/src/client.ts
index 10922321cf..2ea1db37ba 100644
--- a/packages/passkey/src/client.ts
+++ b/packages/passkey/src/client.ts
@@ -77,7 +77,7 @@ export const getPasskeyActions = (
 				data: null,
 				error: {
 					code: "AUTH_CANCELLED",
-					message: "auth cancelled",
+					message: PASSKEY_ERROR_CODES.AUTH_CANCELLED,
 					status: 400,
 					statusText: "BAD_REQUEST",
 				},
@@ -158,7 +158,7 @@ export const getPasskeyActions = (
 						data: null,
 						error: {
 							code: e.code,
-							message: "previously registered",
+							message: PASSKEY_ERROR_CODES.PREVIOUSLY_REGISTERED,
 							status: 400,
 							statusText: "BAD_REQUEST",
 						},
@@ -169,7 +169,7 @@ export const getPasskeyActions = (
 						data: null,
 						error: {
 							code: e.code,
-							message: "registration cancelled",
+							message: PASSKEY_ERROR_CODES.REGISTRATION_CANCELLED,
 							status: 400,
 							statusText: "BAD_REQUEST",
 						},
@@ -189,7 +189,8 @@ export const getPasskeyActions = (
 				data: null,
 				error: {
 					code: "UNKNOWN_ERROR",
-					message: e instanceof Error ? e.message : "unknown error",
+					message:
+						e instanceof Error ? e.message : PASSKEY_ERROR_CODES.UNKNOWN_ERROR,
 					status: 500,
 					statusText: "INTERNAL_SERVER_ERROR",
 				},
diff --git a/packages/passkey/src/error-codes.ts b/packages/passkey/src/error-codes.ts
index bf724ae2d2..12ba1e3887 100644
--- a/packages/passkey/src/error-codes.ts
+++ b/packages/passkey/src/error-codes.ts
@@ -9,4 +9,8 @@ export const PASSKEY_ERROR_CODES = defineErrorCodes({
 	AUTHENTICATION_FAILED: "Authentication failed",
 	UNABLE_TO_CREATE_SESSION: "Unable to create session",
 	FAILED_TO_UPDATE_PASSKEY: "Failed to update passkey",
+	PREVIOUSLY_REGISTERED: "Previously registered",
+	REGISTRATION_CANCELLED: "Registration cancelled",
+	AUTH_CANCELLED: "Auth cancelled",
+	UNKNOWN_ERROR: "Unknown error",
 });
diff --git a/packages/passkey/src/index.ts b/packages/passkey/src/index.ts
index 1f61327d28..97d4d3605f 100644
--- a/packages/passkey/src/index.ts
+++ b/packages/passkey/src/index.ts
@@ -21,6 +21,8 @@ declare module "@better-auth/core" {
 	}
 }
 
+export { PASSKEY_ERROR_CODES } from "./error-codes";
+
 const MAX_AGE_IN_SECONDS = 60 * 5; // 5 minutes
 
 export const passkey = (options?: PasskeyOptions | undefined) => {