diff --git a/lib/http2.c b/lib/http2.c
index ea949405..39aa989e 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -176,7 +176,7 @@ int lws_http2_frame_write(struct lws *wsi, int type, int flags,
 	if (type == LWS_HTTP2_FRAME_TYPE_DATA) {
 		if (wsi->u.http2.tx_credit < len)
 			lwsl_err("%s: %p: sending payload len %d"
-				 " but tx_credit only %d!\n", len,
+				 " but tx_credit only %d!\n", __func__, wsi, len,
 				 wsi->u.http2.tx_credit);
 		wsi->u.http2.tx_credit -= len;
 	}
diff --git a/lib/ssl-http2.c b/lib/ssl-http2.c
index f03ee602..eb3d2084 100644
--- a/lib/ssl-http2.c
+++ b/lib/ssl-http2.c
@@ -100,7 +100,7 @@ lws_context_init_http2_ssl(struct lws_vhost *vhost)
 	lwsl_notice(" HTTP2 / ALPN enabled\n");
 #else
 	lwsl_notice(
-		" HTTP2 / ALPN configured but not supported by OpenSSL 0x%x\n",
+		" HTTP2 / ALPN configured but not supported by OpenSSL 0x%lx\n",
 		    OPENSSL_VERSION_NUMBER);
 #endif // OPENSSL_VERSION_NUMBER >= 0x10002000L
 }