--- a/SWIG/_bio.i
+++ b/SWIG/_bio.i
@@ -9,6 +9,10 @@
 
 %{
 #include <openssl/bio.h>
+
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+#define BIO_get_init(b) (b)->init
+#endif
 %}
 
 %apply Pointer NONNULL { BIO * };
--- a/SWIG/_lib11_compat.i
+++ b/SWIG/_lib11_compat.i
@@ -8,7 +8,7 @@
  */
 
 %{
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
 
 #include <string.h>
 #include <openssl/engine.h>