diff --git a/source/units/unit_definitions.c b/source/units/unit_definitions.c
index c5e0372f..b4d4bfa0 100644
--- a/source/units/unit_definitions.c
+++ b/source/units/unit_definitions.c
@@ -41,4 +41,25 @@ long unit_definition_get_active_hud_index(
 		struct unit_hud_reference)->hud);
 }
 
+long unit_definition_get_seat_active_hud_index(
+	struct unit_definition const *definition,
+	short seat_index,
+	boolean multiplayer)
+{
+	struct unit_seat *seat = TAG_BLOCK_GET_ELEMENT(
+		&definition->unit.seats,
+		seat_index,
+		struct unit_seat);
+	short hud_index = multiplayer != FALSE;
+	hud_index = MIN(hud_index, seat->seat_huds.count - 1);
+
+	if (hud_index < 0)
+		return NONE;
+
+	return verify_tag_reference(&TAG_BLOCK_GET_ELEMENT(
+		&seat->seat_huds,
+		hud_index,
+		struct unit_hud_reference)->hud);
+}
+
 /* ---------- private code */
diff --git a/source/units/unit_definitions.h b/source/units/unit_definitions.h
index 95d62014..768f2d20 100644
--- a/source/units/unit_definitions.h
+++ b/source/units/unit_definitions.h
@@ -164,6 +164,7 @@ struct unit_definition
 /* ---------- prototypes/EXAMPLE.C */
 
 long unit_definition_get_active_hud_index(struct unit_definition const *definition, boolean multiplayer);
+long unit_definition_get_seat_active_hud_index(struct unit_definition const *definition, short seat_index, boolean multiplayer);
 
 /* ---------- globals */