diff --git a/crypto/x509/x509_vpm.c b/crypto/x509/x509_vpm.c
index 2ea39c88162bcc61fbad46e074682b0ac1136e69..05c785217aa70bf6c62805034774486ce7dba4c8 100644
--- a/crypto/x509/x509_vpm.c
+++ b/crypto/x509/x509_vpm.c
@@ -301,7 +301,7 @@ int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
     return 1;
 }
 
-unsigned long X509_VERIFY_PARAM_get_flags(const X509_VERIFY_PARAM *param)
+unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)
 {
     return param->flags;
 }
@@ -396,7 +396,7 @@ void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
     param->hostflags = flags;
 }
 
-const char *X509_VERIFY_PARAM_get0_peername(const X509_VERIFY_PARAM *param)
+char *X509_VERIFY_PARAM_get0_peername(X509_VERIFY_PARAM *param)
 {
     return param->peername;
 }
diff --git a/doc/crypto/X509_VERIFY_PARAM_set_flags.pod b/doc/crypto/X509_VERIFY_PARAM_set_flags.pod
index 528a53aee401102fb678e12f817fceb5be03c86f..2800cd441d74ade2bc49ae82613b918db60afcd8 100644
--- a/doc/crypto/X509_VERIFY_PARAM_set_flags.pod
+++ b/doc/crypto/X509_VERIFY_PARAM_set_flags.pod
@@ -12,7 +12,7 @@ X509_VERIFY_PARAM_set_flags, X509_VERIFY_PARAM_clear_flags, X509_VERIFY_PARAM_ge
                                         unsigned long flags);
  int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
                                         unsigned long flags);
- unsigned long X509_VERIFY_PARAM_get_flags(const X509_VERIFY_PARAM *param);
+ unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param);
 
  int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose);
  int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust);
@@ -37,7 +37,7 @@ X509_VERIFY_PARAM_set_flags, X509_VERIFY_PARAM_clear_flags, X509_VERIFY_PARAM_ge
                                  const char *name, size_t namelen);
  void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
                                       unsigned int flags);
- const char *X509_VERIFY_PARAM_get0_peername(const X509_VERIFY_PARAM *param);
+ char *X509_VERIFY_PARAM_get0_peername(X509_VERIFY_PARAM *param);
  int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
                                  const char *email, size_t emaillen);
  int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *param,
diff --git a/doc/ssl/SSL_set1_host.pod b/doc/ssl/SSL_set1_host.pod
index d254fe7483f9a10fb0585f4a6f290d98a041a6b1..3339a0e803b58c05944ff4b5ed884699b17bf17a 100644
--- a/doc/ssl/SSL_set1_host.pod
+++ b/doc/ssl/SSL_set1_host.pod
@@ -12,7 +12,7 @@ SSL server verification parameters
  int SSL_set1_host(SSL *s, const char *hostname);
  int SSL_add1_host(SSL *s, const char *hostname);
  void SSL_set_hostflags(SSL *s, unsigned int flags);
- const char *SSL_get0_peername(const SSL *s);
+ const char *SSL_get0_peername(SSL *s);
 
 =head1 DESCRIPTION
 
diff --git a/include/openssl/ssl.h b/include/openssl/ssl.h
index 5355c8302a631e0869d4b090953b46fda196d8e9..183296c2cf84153ef480478655b6c16d0cffb1c3 100644
--- a/include/openssl/ssl.h
+++ b/include/openssl/ssl.h
@@ -1493,7 +1493,7 @@ __owur int SSL_set_trust(SSL *s, int trust);
 
 __owur int SSL_set1_host(SSL *s, const char *hostname);
 __owur int SSL_add1_host(SSL *s, const char *hostname);
-__owur const char *SSL_get0_peername(const SSL *s);
+__owur const char *SSL_get0_peername(SSL *s);
 void SSL_set_hostflags(SSL *s, unsigned int flags);
 
 __owur int SSL_CTX_dane_enable(SSL_CTX *ctx);
diff --git a/include/openssl/x509_vfy.h b/include/openssl/x509_vfy.h
index 12984f00558fcc25922c6113ae17da0f0845755d..cab8005eeea0ac42d9bb203c7225c66ed0da346d 100644
--- a/include/openssl/x509_vfy.h
+++ b/include/openssl/x509_vfy.h
@@ -453,7 +453,7 @@ int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param,
                                 unsigned long flags);
 int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
                                   unsigned long flags);
-unsigned long X509_VERIFY_PARAM_get_flags(const X509_VERIFY_PARAM *param);
+unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param);
 int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose);
 int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust);
 void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth);
@@ -470,7 +470,7 @@ int X509_VERIFY_PARAM_add1_host(X509_VERIFY_PARAM *param,
                                 const char *name, size_t namelen);
 void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
                                      unsigned int flags);
-const char *X509_VERIFY_PARAM_get0_peername(const X509_VERIFY_PARAM *);
+char *X509_VERIFY_PARAM_get0_peername(X509_VERIFY_PARAM *);
 void X509_VERIFY_PARAM_move_peername(X509_VERIFY_PARAM *, X509_VERIFY_PARAM *);
 int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
                                  const char *email, size_t emaillen);
diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index 27a16ef6f4800ab51446828d3bd328fcd5c1f357..bd0fbf8101bf6f3be2d67358b38a9af4914cb6f4 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -795,7 +795,7 @@ void SSL_set_hostflags(SSL *s, unsigned int flags)
     X509_VERIFY_PARAM_set_hostflags(s->param, flags);
 }
 
-const char *SSL_get0_peername(const SSL *s)
+const char *SSL_get0_peername(SSL *s)
 {
     return X509_VERIFY_PARAM_get0_peername(s->param);
 }