diff --git a/src/reducers/accounts.js b/src/reducers/accounts.js
index afc3f706..74f5a5dd 100644
--- a/src/reducers/accounts.js
+++ b/src/reducers/accounts.js
@@ -34,7 +34,13 @@ const handlers: Object = {
   ADD_ACCOUNT: (
     state: AccountsState,
     { payload: account }: { payload: Account },
-  ): AccountsState => [...state, orderAccountsOperations(account)],
+  ): AccountsState => {
+    if (state.some(a => a.id === account.id)) {
+      console.warn('ADD_ACCOUNT attempt for an account that already exists!', account.id)
+      return state
+    }
+    return [...state, orderAccountsOperations(account)]
+  },
 
   UPDATE_ACCOUNT: (
     state: AccountsState,