diff --git a/EnvelopeGenerator.Application/Envelopes/MappingProfile.cs b/EnvelopeGenerator.Application/Envelopes/MappingProfile.cs
index 77ee38c6..cdf07c15 100644
--- a/EnvelopeGenerator.Application/Envelopes/MappingProfile.cs
+++ b/EnvelopeGenerator.Application/Envelopes/MappingProfile.cs
@@ -16,6 +16,7 @@ public class MappingProfile : Profile
     public MappingProfile()
     {
         CreateMap<Envelope, CreateEnvelopeReceiverResponse>();
-        CreateMap<CreateEnvelopeCommand, Envelope>();
+        CreateMap<CreateEnvelopeCommand, Envelope>()
+            .ForMember(dest => dest.Uuid, opt => opt.MapFrom(_ => Guid.NewGuid().ToString()));
     }
 }