diff --git a/src/output/amgc_output_compound.c b/src/output/amgc_output_compound.c
index bbc85d9..02923b4 100644
--- a/src/output/amgc_output_compound.c
+++ b/src/output/amgc_output_compound.c
@@ -271,7 +271,7 @@ static int output_compound(
 	return 0;
 }
 
-int amgc_output_compound(
+static int output_compound_entity(
 	const struct amgc_unit_ctx *	uctx,
 	const struct amgc_entity *	aentity,
 	const struct amgc_layout *	layout,
@@ -298,3 +298,19 @@ int amgc_output_compound(
 
 	return 0;
 }
+
+int amgc_output_compound(
+	const struct amgc_unit_ctx *	uctx,
+	const struct amgc_entity *	aentity,
+	const struct amgc_layout *	layout,
+	FILE *				fout)
+{
+	union entity_t const * entity;
+
+	entity = aentity->entity;
+
+	if ((entity->kind == ENTITY_STRUCT) || (entity->kind == ENTITY_UNION))
+		return output_compound_entity(uctx,aentity,layout,fout);
+	else
+		return -1;
+}