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-rw-r--r--ext/zlib/zlib.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c
index a938946ea6..6bd344465b 100644
--- a/ext/zlib/zlib.c
+++ b/ext/zlib/zlib.c
@@ -4477,6 +4477,7 @@ zlib_gunzip_run(VALUE arg)
void
Init_zlib(void)
{
+#undef rb_intern
VALUE mZlib, cZStream, cDeflate, cInflate;
#if GZIP_SUPPORT
VALUE cGzipFile, cGzipWriter, cGzipReader;