diff --git a/libs/vkd3d/resource.c b/libs/vkd3d/resource.c
index 6ce09e91..cfe6ebb8 100644
--- a/libs/vkd3d/resource.c
+++ b/libs/vkd3d/resource.c
@@ -210,13 +210,15 @@ static unsigned int vkd3d_select_memory_type(struct d3d12_device *device, uint32
             required_flags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
             break;
 
+        case D3D12_HEAP_TYPE_CUSTOM:
+            FIXME("Custom heaps not supported yet.\n");
         case D3D12_HEAP_TYPE_UPLOAD:
         case D3D12_HEAP_TYPE_READBACK:
             required_flags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
             break;
 
         default:
-            FIXME("Unsupported heap type %#x.\n", heap_properties->Type);
+            WARN("Invalid heap type %#x.\n", heap_properties->Type);
             return ~0u;
     }