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-rw-r--r--ext/digest/digest.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/digest/digest.c b/ext/digest/digest.c
index 347e3c71c4b..906ea18b3b2 100644
--- a/ext/digest/digest.c
+++ b/ext/digest/digest.c
@@ -244,7 +244,7 @@ rb_digest_base_equal(VALUE self, VALUE other)
*/
void
-Init_digest()
+Init_digest(void)
{
mDigest = rb_define_module("Digest");