diff -ur djview4-4.9/src/qdjview.cpp b/src/qdjview.cpp
--- djview4-4.9/src/qdjview.cpp	2012-04-09 20:56:55.000000000 -0700
+++ b/src/qdjview.cpp	2017-11-08 10:34:33.671327783 -0800
@@ -4643,13 +4643,21 @@
 static QString
 miniexp_to_string(miniexp_t expr, int width=40, bool octal=false)
 {
+#if DDJVUAPI_VERSION > 21
+  static int one = miniexp_io_print7bits;
+#else
   static int one = 1;
+#endif
   QByteArray buffer;
   miniexp_io_t io;
   miniexp_io_init(&io);
   io.fputs = qstring_puts;
   io.data[1] = (void*)&buffer;
+#if DDJVUAPI_VERSION >21
+  io.p_flags = (octal ? &one : 0);
+#else
   io.p_print7bits = (octal ? &one : 0);
+#endif
   miniexp_pprint_r(&io, expr, width);
   return QString::fromUtf8(buffer.data());
 }