diff --git a/src/_cffi_src/openssl/x509v3.py b/src/_cffi_src/openssl/x509v3.py
index 89becc0..427d380 100644
--- a/src/_cffi_src/openssl/x509v3.py
+++ b/src/_cffi_src/openssl/x509v3.py
@@ -176,7 +176,6 @@
 FUNCTIONS = """
 int X509V3_EXT_add_alias(int, int);
 void X509V3_set_ctx(X509V3_CTX *, X509 *, X509 *, X509_REQ *, X509_CRL *, int);
-X509_EXTENSION *X509V3_EXT_nconf(CONF *, X509V3_CTX *, char *, char *);
 GENERAL_NAME *GENERAL_NAME_new(void);
 int GENERAL_NAME_print(BIO *, GENERAL_NAME *);
 GENERAL_NAMES *GENERAL_NAMES_new(void);
@@ -185,6 +184,8 @@
 """
 
 MACROS = """
+/* The last two char * args became const char * in 1.1.0 */
+X509_EXTENSION *X509V3_EXT_nconf(CONF *, X509V3_CTX *, char *, char *);
 /* This is a macro defined by a call to DECLARE_ASN1_FUNCTIONS in the
    x509v3.h header. */
 BASIC_CONSTRAINTS *BASIC_CONSTRAINTS_new(void);