diff --git a/tools/dbus-send.c b/tools/dbus-send.c
index c7d5090..693d6a5 100644
--- a/tools/dbus-send.c
+++ b/tools/dbus-send.c
@@ -25,6 +25,7 @@
 #include <string.h>
 
 #include <dbus/dbus.h>
+#include <dbus/dbus-internals.h>
 
 #ifndef HAVE_STRTOLL
 #undef strtoll
@@ -305,7 +306,7 @@ main (int argc, char *argv[])
       else if (name == NULL)
         name = arg;
       else
-        usage (1);
+        _dbus_assert_not_reached ("Invalid code path");
     }
 
   if (name == NULL)