1 files changed, 3 insertions, 0 deletions
diff --git a/encoding.c b/encoding.c
index 5c399b1134..869c1b0acd 100644
--- a/encoding.c
+++ b/encoding.c
@@ -566,6 +566,9 @@ rb_enc_init(void)
     ENCDB_REGISTER("UTF-16", UTF_16);
     ENCDB_REGISTER("UTF-32", UTF_32);
     ENCDB_REGISTER("UTF8-MAC", UTF8_MAC);
+
+    ENCDB_REGISTER("EUC-JP", EUC_JP);
+    ENCDB_REGISTER("Windows-31J", Windows_31J);
 #undef ENCDB_REGISTER
 #endif
     enc_table.count = ENCINDEX_BUILTIN_MAX;