diff --git a/jobspec/test-fixtures/service-enable-tag-override.hcl b/jobspec/test-fixtures/service-enable-tag-override.hcl
index 9143b8c34cd..78dde6168b0 100644
--- a/jobspec/test-fixtures/service-enable-tag-override.hcl
+++ b/jobspec/test-fixtures/service-enable-tag-override.hcl
@@ -1,9 +1,10 @@
 job "service_eto" {
   type = "service"
+
   group "group" {
     task "task" {
       service {
-        name = "example"
+        name                = "example"
         enable_tag_override = true
       }
     }
diff --git a/jobspec/test-fixtures/tg-service-enable-tag-override.hcl b/jobspec/test-fixtures/tg-service-enable-tag-override.hcl
index a78ff66f995..451233d1ff6 100644
--- a/jobspec/test-fixtures/tg-service-enable-tag-override.hcl
+++ b/jobspec/test-fixtures/tg-service-enable-tag-override.hcl
@@ -1,7 +1,7 @@
 job "group_service_eto" {
   group "group" {
     service {
-      name = "example"
+      name                = "example"
       enable_tag_override = true
     }
   }
diff --git a/nomad/core_sched.go b/nomad/core_sched.go
index 01b7a0759e7..601e66fe492 100644
--- a/nomad/core_sched.go
+++ b/nomad/core_sched.go
@@ -769,7 +769,7 @@ func (c *CoreScheduler) volumeClaimReap(jobs []*structs.Job, leaderACL string) e
 					continue
 				}
 
-				gcAllocs := []*structs.Allocation{}
+				gcAllocs := []string{} // alloc IDs
 				claimedNodes := map[string]struct{}{}
 				knownNodes := []string{}
 
@@ -790,7 +790,7 @@ func (c *CoreScheduler) volumeClaimReap(jobs []*structs.Job, leaderACL string) e
 							claimedNodes[alloc.NodeID] = struct{}{}
 							continue
 						}
-						gcAllocs = append(gcAllocs, alloc)
+						gcAllocs = append(gcAllocs, alloc.ID)
 					}
 				}
 
@@ -798,9 +798,9 @@ func (c *CoreScheduler) volumeClaimReap(jobs []*structs.Job, leaderACL string) e
 				collectFunc(vol.ReadAllocs)
 
 				req := &structs.CSIVolumeClaimRequest{
-					VolumeID:   volID,
-					Allocation: nil, // controller unpublish never uses this field
-					Claim:      structs.CSIVolumeClaimRelease,
+					VolumeID:     volID,
+					AllocationID: "", // controller unpublish never uses this field
+					Claim:        structs.CSIVolumeClaimRelease,
 					WriteRequest: structs.WriteRequest{
 						Region:    job.Region,
 						Namespace: job.Namespace,
@@ -822,8 +822,8 @@ func (c *CoreScheduler) volumeClaimReap(jobs []*structs.Job, leaderACL string) e
 					}
 				}
 
-				for _, alloc := range gcAllocs {
-					req.Allocation = alloc
+				for _, allocID := range gcAllocs {
+					req.AllocationID = allocID
 					err = c.srv.RPC("CSIVolume.Claim", req, &structs.CSIVolumeClaimResponse{})
 					if err != nil {
 						c.logger.Error("volume claim release failed", "error", err)