2 files changed, 2 insertions, 0 deletions
diff --git a/ext/json/generator/generator.c b/ext/json/generator/generator.c
index 2bf8074562..f061267f0d 100644
--- a/ext/json/generator/generator.c
+++ b/ext/json/generator/generator.c
@@ -1335,6 +1335,7 @@ static VALUE cState_buffer_initial_length_set(VALUE self, VALUE buffer_initial_l
  */
 void Init_generator(void)
 {
+#undef rb_intern
     rb_require("json/common");
 
     mJSON = rb_define_module("JSON");
diff --git a/ext/json/parser/parser.c b/ext/json/parser/parser.c
index d2e4eb6686..b5ed093c1f 100644
--- a/ext/json/parser/parser.c
+++ b/ext/json/parser/parser.c
@@ -2064,6 +2064,7 @@ static VALUE cParser_source(VALUE self)
 
 void Init_parser(void)
 {
+#undef rb_intern
     rb_require("json/common");
     mJSON = rb_define_module("JSON");
     mExt = rb_define_module_under(mJSON, "Ext");