1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libcrypto/evp/p_enc.c b/src/lib/libcrypto/evp/p_enc.c
index 656883b996..c2dfdc52ad 100644
--- a/src/lib/libcrypto/evp/p_enc.c
+++ b/src/lib/libcrypto/evp/p_enc.c
@@ -66,7 +66,7 @@
 #include <openssl/objects.h>
 #include <openssl/x509.h>
 
-int EVP_PKEY_encrypt(unsigned char *ek, unsigned char *key, int key_len,
+int EVP_PKEY_encrypt(unsigned char *ek, const unsigned char *key, int key_len,
              EVP_PKEY *pubk)
         {
         int ret=0;