diff --git a/src/libpts/pts/pts_dh_group.h b/src/libpts/pts/pts_dh_group.h
index 8664a4b84..0500b8010 100644
--- a/src/libpts/pts/pts_dh_group.h
+++ b/src/libpts/pts/pts_dh_group.h
@@ -93,6 +93,17 @@ bool pts_dh_group_update(char *dh_group, pts_dh_group_t *dh_groups);
 pts_dh_group_t pts_dh_group_select(pts_dh_group_t supported_dh_groups,
 								   pts_dh_group_t offered_dh_groups);
 
+/**
+ * Select the strongest supported Diffie-Hellman group
+ * among a set of offered Diffie-Hellman groups
+ *
+ * @param dh_group		set of supported DH groups
+ * @param groups		set of offered DH groups
+ * @return				selected DH group
+ */
+pts_dh_group_t pts_dh_group_select(pts_dh_group_t supported_dh_groups,
+								   pts_dh_group_t offered_dh_groups);
+
 /**
  * Convert pts_dh_group_t to diffie_hellman_group_t
  *