diff --git a/vlib/v/gen/c/index.v b/vlib/v/gen/c/index.v
index afdcccbcdd..8af7cca26a 100644
--- a/vlib/v/gen/c/index.v
+++ b/vlib/v/gen/c/index.v
@@ -164,11 +164,12 @@ fn (mut g Gen) index_of_array(node ast.IndexExpr, sym ast.TypeSymbol) {
 	gen_or := node.or_expr.kind != .absent || node.is_option
 	left_is_ptr := node.left_type.is_ptr()
 	info := sym.info as ast.Array
-	mut elem_type_str := g.typ(info.elem_type)
 	elem_type := info.elem_type
 	elem_sym := g.table.sym(elem_type)
-	if elem_sym.kind == .function {
-		elem_type_str = 'voidptr'
+	elem_type_str := if elem_sym.kind == .function {
+		'voidptr'
+	} else {
+		g.typ(info.elem_type)
 	}
 	// `vals[i].field = x` is an exception and requires `array_get`:
 	// `(*(Val*)array_get(vals, i)).field = x;`
@@ -355,10 +356,11 @@ fn (mut g Gen) index_of_map(node ast.IndexExpr, sym ast.TypeSymbol) {
 	info := sym.info as ast.Map
 	key_type_str := g.typ(info.key_type)
 	elem_type := info.value_type
-	mut elem_type_str := g.typ(elem_type)
 	elem_sym := g.table.sym(elem_type)
-	if elem_sym.kind == .function {
-		elem_type_str = 'voidptr'
+	elem_type_str := if elem_sym.kind == .function {
+		'voidptr'
+	} else {
+		g.typ(elem_type)
 	}
 	get_and_set_types := elem_sym.kind in [.struct_, .map]
 	if g.is_assign_lhs && !g.is_arraymap_set && !get_and_set_types {