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-rw-r--r--ext/digest/bubblebabble/bubblebabble.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/digest/bubblebabble/bubblebabble.c b/ext/digest/bubblebabble/bubblebabble.c
index 8f436908d3..6557e43c9d 100644
--- a/ext/digest/bubblebabble/bubblebabble.c
+++ b/ext/digest/bubblebabble/bubblebabble.c
@@ -124,6 +124,7 @@ rb_digest_instance_bubblebabble(VALUE self)
void
Init_bubblebabble(void)
{
+#undef rb_intern
VALUE rb_mDigest, rb_mDigest_Instance, rb_cDigest_Class;
rb_require("digest");