Index: src/html/kopenssl.h
--- src/html/kopenssl.h.orig
+++ src/html/kopenssl.h
@@ -560,9 +560,9 @@ class KOpenSSLProxy (public)
     void ASN1_INTEGER_free(ASN1_INTEGER *x);
 
     /*
-     *  ASN1_STRING_data
+     *  ASN1_STRING_get0_data
      */
-    unsigned char *ASN1_STRING_data(ASN1_STRING *x);
+    const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *x);
 
     /*
      *  ASN1_STRING_length
