1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libcrypto/bf/bf_skey.c b/src/lib/libcrypto/bf/bf_skey.c
index eefa8e6f51..4d6a232fe0 100644
--- a/src/lib/libcrypto/bf/bf_skey.c
+++ b/src/lib/libcrypto/bf/bf_skey.c
@@ -62,11 +62,11 @@
 #include "bf_locl.h"
 #include "bf_pi.h"
 
-void BF_set_key(BF_KEY *key, int len, unsigned char *data)
+void BF_set_key(BF_KEY *key, int len, const unsigned char *data)
         {
         int i;
         BF_LONG *p,ri,in[2];
-        unsigned char *d,*end;
+        const unsigned char *d,*end;
 
 
         memcpy((char *)key,(char *)&bf_init,sizeof(BF_KEY));