1 files changed, 22 insertions, 0 deletions
diff --git a/app/scripts/migrations/004.js b/app/scripts/migrations/004.js
new file mode 100644
index 000000000..2e3164baf
--- /dev/null
+++ b/app/scripts/migrations/004.js
@@ -0,0 +1,22 @@
+module.exports = {
+  version: 4,
+
+  migrate: function(data) {
+    try {
+      if (data.config.provider.type !== 'rpc') return data
+      switch (data.config.provider.rpcTarget) {
+        case 'https://testrpc.metamask.io/':
+            data.config.provider = {
+              type: 'testnet'
+            }
+          break
+        case 'https://rpc.metamask.io/':
+            data.config.provider = {
+              type: 'mainnet'
+            }
+          break
+      }
+    } catch (_) {}
+    return data
+  }
+}