1 files changed, 7 insertions, 0 deletions
diff --git a/encoding.c b/encoding.c
index 6e9ef21d94..b9e820fa29 100644
--- a/encoding.c
+++ b/encoding.c
@@ -32,6 +32,7 @@ void rb_encdb_declare(const char *name);
 int rb_encdb_replicate(const char *name, const char *orig);
 int rb_encdb_dummy(const char *name);
 int rb_encdb_alias(const char *alias, const char *orig);
+void rb_encdb_set_unicode(int index);
 #pragma GCC visibility pop
 #endif
 
@@ -512,6 +513,12 @@ rb_encdb_alias(const char *alias, const char *orig)
     return enc_alias(alias, idx);
 }
 
+void
+rb_encdb_set_unicode(int index)
+{
+    rb_enc_from_index(index)->flags |= ONIGENC_FLAG_UNICODE;
+}
+
 enum {
     ENCINDEX_ASCII,
     ENCINDEX_UTF_8,