diff --git a/pams/sim/idl/g2t_track.idl b/pams/sim/idl/g2t_track.idl
index 9452ef802d4..e6f257fd964 100644
--- a/pams/sim/idl/g2t_track.idl
+++ b/pams/sim/idl/g2t_track.idl
@@ -88,6 +88,7 @@ struct g2t_track {
        long      hit_etr_p;  /* Id of first etr hit on track linked list */
        long      hit_hca_p;  /* Id of first hca hit on track linked list */
        long      hit_fts_p;  /* Id of first fts hit on track linked list */
+       long      hit_stg_p;  /* Id of first stg hit on track linked list */
        long      hit_eto_p;  /* Id of first etof hit on track linked list */ 
        long      hit_wca_p;  /* Id of first wca hit on track linked list */
        long      hit_pre_p;  /* Id of first pre hit on track linked list */