diff --git a/lib/extension-deflate-stream.c b/lib/extension-deflate-stream.c
index deb793be..3505e950 100644
--- a/lib/extension-deflate-stream.c
+++ b/lib/extension-deflate-stream.c
@@ -4,7 +4,7 @@
 #include <string.h>
 #include <assert.h>
 
-#define LWS_ZLIB_WINDOW_BITS 8
+#define LWS_ZLIB_WINDOW_BITS 15
 #define LWS_ZLIB_MEMLEVEL 8
 
 int lws_extension_callback_deflate_stream(
diff --git a/lib/private-libwebsockets.h b/lib/private-libwebsockets.h
index f0f55a82..6aef84a3 100644
--- a/lib/private-libwebsockets.h
+++ b/lib/private-libwebsockets.h
@@ -258,6 +258,7 @@ struct libwebsocket {
 	char rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING + MAX_USER_RX_BUFFER +
 						  LWS_SEND_BUFFER_POST_PADDING];
 	int rx_user_buffer_head;
+	enum libwebsocket_write_protocol rx_frame_type;
 	int protocol_index_for_broadcast_proxy;
 	enum pending_timeout pending_timeout;
 	unsigned long pending_timeout_limit;