1 files changed, 4 insertions, 3 deletions

diff --git a/src/lib/libcrypto/pem/pem_oth.c b/src/lib/libcrypto/pem/pem_oth.c
index 8d9064ea7c..b33868d25a 100644
--- a/src/lib/libcrypto/pem/pem_oth.c
+++ b/src/lib/libcrypto/pem/pem_oth.c
@@ -67,10 +67,11 @@
 
 /* Handle 'other' PEMs: not private keys */
 
-char *PEM_ASN1_read_bio(char *(*d2i)(), const char *name, BIO *bp, char **x,
-             pem_password_cb *cb, void *u)
+void *PEM_ASN1_read_bio(d2i_of_void *d2i, const char *name, BIO *bp, void **x,
+                        pem_password_cb *cb, void *u)
         {
-        unsigned char *p=NULL,*data=NULL;
+        const unsigned char *p=NULL;
+        unsigned char *data=NULL;
         long len;
         char *ret=NULL;