diff --git a/AfRApay.Web/Controllers/CardController.cs b/AfRApay.Web/Controllers/CardController.cs
index f67ec9e..7579e22 100644
--- a/AfRApay.Web/Controllers/CardController.cs
+++ b/AfRApay.Web/Controllers/CardController.cs
@@ -117,7 +117,7 @@ public class CardController : Controller {
 	[SwaggerResponseExample(200, typeof(UserUpdatedExample))]
 	[SwaggerResponseExample(404, typeof(ErrorUnknownCardExample))]
 	[Route("/api/card/{card}/balance")]
-	public IActionResult Balance(string card, [FromQuery] string? reader) {
+	public async Task<IActionResult> Balance(string card, [FromQuery] string? reader) {
 		var db = new DatabaseContext();
 		if (db.Cards.Any(p => p.Id == card)) {
 			var user = db.Cards.Include(p => p.User).First(p => p.Id == card).User;
@@ -127,7 +127,7 @@ public class CardController : Controller {
 
 			if (dbCard.Type != newType) {
 				dbCard.Type = newType;
-				db.SaveChangesAsync();
+				await db.SaveChangesAsync();
 			}
 
 			return Ok(new UserResponse(user));