diff --git a/libs/shared/src/config/getSendMyParcelConfig.ts b/libs/shared/src/config/getSendMyParcelConfig.ts
index 43caa52d..c25be9e9 100644
--- a/libs/shared/src/config/getSendMyParcelConfig.ts
+++ b/libs/shared/src/config/getSendMyParcelConfig.ts
@@ -44,6 +44,10 @@ export const getSendMyParcelConfig = (): PlatformConfiguration => ({
       addressFields: [AddressField.PostalCode, AddressField.Street, AddressField.City],
       shipmentOptions: [ShipmentOptionName.Signature],
       fakeDelivery: true,
+      /**
+       * API returns a 500 error when package_type is passed, even though it's valid for belgie + bpost.
+       */
+      unsupportedParameters: ['package_type'],
     },
     {
       name: CarrierName.PostNl,
diff --git a/libs/shared/src/utils/__snapshots__/getPlatformConfig.spec.ts.snap b/libs/shared/src/utils/__snapshots__/getPlatformConfig.spec.ts.snap
index 1506f0b2..bfc0745f 100644
--- a/libs/shared/src/utils/__snapshots__/getPlatformConfig.spec.ts.snap
+++ b/libs/shared/src/utils/__snapshots__/getPlatformConfig.spec.ts.snap
@@ -37,6 +37,9 @@ exports[`getPlatformConfig > gets config for platform belgie 1`] = `
         "signature",
       ],
       "subscription": 0,
+      "unsupportedParameters": [
+        "package_type",
+      ],
     },
     {
       "deliveryCountries": [