1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libcrypto/rc2/rc2_cbc.c b/src/lib/libcrypto/rc2/rc2_cbc.c
index 1202184e85..74f48d3d87 100644
--- a/src/lib/libcrypto/rc2/rc2_cbc.c
+++ b/src/lib/libcrypto/rc2/rc2_cbc.c
@@ -59,7 +59,7 @@
 #include <openssl/rc2.h>
 #include "rc2_locl.h"
 
-void RC2_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
+void RC2_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
              RC2_KEY *ks, unsigned char *iv, int encrypt)
         {
         register unsigned long tin0,tin1;