diff --git a/src/Core/Services/Implementations/StripePaymentService.cs b/src/Core/Services/Implementations/StripePaymentService.cs
index 510a1b7c3a..e14467f943 100644
--- a/src/Core/Services/Implementations/StripePaymentService.cs
+++ b/src/Core/Services/Implementations/StripePaymentService.cs
@@ -2081,7 +2081,7 @@ public class StripePaymentService : IPaymentService
             ];
         }
 
-        if (gatewayCustomerId != null)
+        if (!string.IsNullOrWhiteSpace(gatewayCustomerId))
         {
             var gatewayCustomer = await _stripeAdapter.CustomerGetAsync(gatewayCustomerId);
 
@@ -2091,7 +2091,7 @@ public class StripePaymentService : IPaymentService
             }
         }
 
-        if (gatewaySubscriptionId != null)
+        if (!string.IsNullOrWhiteSpace(gatewaySubscriptionId))
         {
             var gatewaySubscription = await _stripeAdapter.SubscriptionGetAsync(gatewaySubscriptionId);