diff --git a/Mk/main.mk b/Mk/main.mk
index c229337..5f144fe 100644
--- a/Mk/main.mk
+++ b/Mk/main.mk
@@ -378,7 +378,11 @@ endif
 
 ifdef OPENSSL_FOUND
 PKG_CPPFLAGS+=	-I$(OPENSSL_FOUND)/include
+ifneq ($(findstring openssl-3.,$(OPENSSL_FOUND)),openssl-3.)
 PKG_LDFLAGS+=	-L$(OPENSSL_FOUND)/lib
+else
+PKG_LDFLAGS+=	-L$(OPENSSL_FOUND)/lib64
+endif
 PKG_LIBS+=	-lssl -lcrypto -lz
 endif
 ifdef LIBEVENT_FOUND
diff --git a/src/protossl.c b/src/protossl.c
index 37bd5ce..2d8a4c6 100644
--- a/src/protossl.c
+++ b/src/protossl.c
@@ -44,6 +44,11 @@
 static unsigned long ssl_session_context = 0x31415926;
 #endif /* USE_SSL_SESSION_ID_CONTEXT */
 
+#if OPENSSL_VERSION_NUMBER >= 0x30000000L
+#define ERR_GET_FUNC(x) 0
+#define ERR_func_error_string(x) ""
+#endif
+
 void
 protossl_log_ssl_error(struct bufferevent *bev, pxy_conn_ctx_t *ctx)
 {