diff --git a/package/libesmtp/Config.in b/package/libesmtp/Config.in
index 5c6a412134..c631d127e0 100644
--- a/package/libesmtp/Config.in
+++ b/package/libesmtp/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_LIBESMTP
 	bool "libesmtp"
 	depends on !BR2_STATIC_LIBS
+	select BR2_PACKAGE_LIBOPENSSL_ENABLE_DES if BR2_PACKAGE_LIBOPENSSL
 	select BR2_PACKAGE_LIBOPENSSL_ENABLE_MD4 if BR2_PACKAGE_LIBOPENSSL
 	help
 	  Library for sending emails through SMTP.