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-rw-r--r--ext/digest/rmd160/rmd160init.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/digest/rmd160/rmd160init.c b/ext/digest/rmd160/rmd160init.c
index d88a3d3e69d..8cf5461cbfa 100644
--- a/ext/digest/rmd160/rmd160init.c
+++ b/ext/digest/rmd160/rmd160init.c
@@ -24,7 +24,7 @@ static const rb_digest_metadata_t rmd160 = {
* Bosselaers, and Bart Preneel.
*/
void
-Init_rmd160()
+Init_rmd160(void)
{
VALUE mDigest, cDigest_Base, cDigest_RMD160;