diff --git a/agent/structs/config_entry_intentions.go b/agent/structs/config_entry_intentions.go
index 4e334065d5..bc4d36863b 100644
--- a/agent/structs/config_entry_intentions.go
+++ b/agent/structs/config_entry_intentions.go
@@ -277,7 +277,7 @@ type SourceIntention struct {
 	Peer string `json:",omitempty"`
 
 	// SamenessGroup is the name of the sameness group, if applicable.
-	SamenessGroup string `json:",omitempty"`
+	SamenessGroup string `json:",omitempty" alias:"sameness_group"`
 }
 
 type IntentionJWTRequirement struct {
diff --git a/api/config_entry_discoverychain.go b/api/config_entry_discoverychain.go
index 13500d0c42..3696f7be55 100644
--- a/api/config_entry_discoverychain.go
+++ b/api/config_entry_discoverychain.go
@@ -241,7 +241,7 @@ type ServiceResolverRedirect struct {
 	Partition     string `json:",omitempty"`
 	Datacenter    string `json:",omitempty"`
 	Peer          string `json:",omitempty"`
-	SamenessGroup string `json:",omitempty"`
+	SamenessGroup string `json:",omitempty" alias:"sameness_group"`
 }
 
 type ServiceResolverFailover struct {
@@ -252,7 +252,7 @@ type ServiceResolverFailover struct {
 	Datacenters   []string                        `json:",omitempty"`
 	Targets       []ServiceResolverFailoverTarget `json:",omitempty"`
 	Policy        *ServiceResolverFailoverPolicy  `json:",omitempty"`
-	SamenessGroup string                          `json:",omitempty"`
+	SamenessGroup string                          `json:",omitempty" alias:"sameness_group"`
 }
 
 type ServiceResolverFailoverTarget struct {