diff --git a/lib/acpi/acpigen.c b/lib/acpi/acpigen.c
index 27d4eab..b254ef6 100644
--- a/lib/acpi/acpigen.c
+++ b/lib/acpi/acpigen.c
@@ -147,3 +147,9 @@
 	acpigen_emit_stream(ctx, str, str ? strlen(str) : 0);
 	acpigen_emit_byte(ctx, '\0');
 }
+
+void acpigen_write_string(struct acpi_ctx *ctx, const char *str)
+{
+	acpigen_emit_byte(ctx, STRING_PREFIX);
+	acpigen_emit_string(ctx, str);
+}