diff --git a/package.json b/package.json
index d889198a..c9bce9c8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "minibits_wallet",
-  "version": "0.1.8-beta.31",
+  "version": "0.1.8-beta.32",
   "private": true,
   "scripts": {
     "android:clean": "cd android && ./gradlew clean",
diff --git a/src/models/Mint.ts b/src/models/Mint.ts
index 94536ce7..fa2898cb 100644
--- a/src/models/Mint.ts
+++ b/src/models/Mint.ts
@@ -53,7 +53,7 @@ export type MintProofsCounter = {
  */
 export const MintModel = types
     .model('Mint', {
-        id: types.optional(types.string, () => generateId(8)),
+        id: types.optional(types.identifier, () => generateId(8)),
         mintUrl: types.string,
         hostname: types.maybe(types.string),
         shortname: types.maybe(types.string),