diff --git a/internal/services/k8s/pool.go b/internal/services/k8s/pool.go
index 6f54e50845..a9770c73d5 100644
--- a/internal/services/k8s/pool.go
+++ b/internal/services/k8s/pool.go
@@ -250,11 +250,12 @@ func ResourcePool() *schema.Resource {
 				Description: "The status of the pool",
 			},
 			"security_group_id": {
-				Type:        schema.TypeString,
-				Computed:    true,
-				Optional:    true,
-				ForceNew:    true,
-				Description: "The ID of the security group",
+				Type:             schema.TypeString,
+				Computed:         true,
+				Optional:         true,
+				ForceNew:         true,
+				Description:      "The ID of the security group",
+				DiffSuppressFunc: dsf.Locality,
 			},
 		},
 	}
@@ -433,7 +434,7 @@ func ResourceK8SPoolRead(ctx context.Context, d *schema.ResourceData, m any) dia
 	_ = d.Set("zone", pool.Zone)
 	_ = d.Set("upgrade_policy", poolUpgradePolicyFlatten(pool))
 	_ = d.Set("public_ip_disabled", pool.PublicIPDisabled)
-	_ = d.Set("security_group_id", locality.ExpandID(pool.SecurityGroupID))
+	_ = d.Set("security_group_id", pool.SecurityGroupID)
 
 	if pool.PlacementGroupID != nil {
 		_ = d.Set("placement_group_id", zonal.NewID(pool.Zone, *pool.PlacementGroupID).String())