diff --git a/dmenubar/config.def.h b/dmenubar/config.def.h
index b38faac..ade02c0 100644
--- a/dmenubar/config.def.h
+++ b/dmenubar/config.def.h
@@ -6,7 +6,11 @@
  * it. */
 #define BREAK_ON_EOF 0
 
-static int topbar = 1; /* -b  option; if 0, dmenu appears at bottom */
+/* output stdin */
+static int stdin_passthrough = 1;
+
+/* -b option; if 0, dmenu appears at bottom */
+static int topbar = 1;
 
 /* -fn option overrides fonts[0]; default X11 font or font set */
 static const char *fonts[] = {