diff --git a/extensions/libxt_TEE.c b/extensions/libxt_TEE.c
index 92c7601..66c060d 100644
--- a/extensions/libxt_TEE.c
+++ b/extensions/libxt_TEE.c
@@ -99,7 +99,7 @@
 		.revision      = 1,
 		.family        = NFPROTO_IPV4,
 		.size          = XT_ALIGN(sizeof(struct xt_tee_tginfo)),
-		.userspacesize = XT_ALIGN(sizeof(struct xt_tee_tginfo)),
+		.userspacesize = offsetof(struct xt_tee_tginfo, priv),
 		.help          = tee_tg_help,
 		.print         = tee_tg_print,
 		.save          = tee_tg_save,
@@ -112,7 +112,7 @@
 		.revision      = 1,
 		.family        = NFPROTO_IPV6,
 		.size          = XT_ALIGN(sizeof(struct xt_tee_tginfo)),
-		.userspacesize = XT_ALIGN(sizeof(struct xt_tee_tginfo)),
+		.userspacesize = offsetof(struct xt_tee_tginfo, priv),
 		.help          = tee_tg_help,
 		.print         = tee_tg6_print,
 		.save          = tee_tg6_save,