--- a/Simoleon/UI/FavoriteButton.swift	Sat Aug 28 19:18:50 2021 +0100
+++ b/Simoleon/UI/FavoriteButton.swift	Sun Aug 29 19:04:34 2021 +0100
@@ -8,7 +8,7 @@
 import SwiftUI
 
 struct FavoriteButton: View {
-    @State var currencyPair: CurrencyPairModel
+    @ObservedObject var currencyPair: CurrencyPair
     @State private var scale: CGFloat = 1
     @Environment(\.managedObjectContext) private var viewContext
     @FetchRequest(sortDescriptors: []) private var favoritePairs: FetchedResults<FavoritePair>
@@ -91,6 +91,6 @@
 
 struct FavoriteButton_Previews: PreviewProvider {
     static var previews: some View {
-        FavoriteButton(currencyPair: CurrencyPairModel(baseSymbol: "USD", quoteSymbol: "EUR"))
+        FavoriteButton(currencyPair: CurrencyPair())
     }
 }