diff --git a/lib/krb5/crypto.c b/lib/krb5/crypto.c
index 0b293afec..c9951e4ff 100644
--- a/lib/krb5/crypto.c
+++ b/lib/krb5/crypto.c
@@ -2011,10 +2011,11 @@ DES_PCBC_encrypt_key_ivec(krb5_context context,
 
 void
 _krb5_aes_cts_encrypt(const unsigned char *in, unsigned char *out,
-		      size_t len, const AES_KEY *key,
+		      size_t len, const void *aes_key,
 		      unsigned char *ivec, const int enc)
 {
     unsigned char tmp[AES_BLOCK_SIZE];
+    const AES_KEY *key = aes_key; /* XXX remove this when we always have AES */
     int i;
 
     /*