diff --git a/src/rcsim.c b/src/rcsim.c
index bf367026f..57aa215f1 100644
--- a/src/rcsim.c
+++ b/src/rcsim.c
@@ -79,6 +79,7 @@ enum {	// not defined in input.h but used like that, at least in 2.4.22
 void usage(char *n){
 	unsigned int keynum = sizeof(keyname)/sizeof(struct key);
 	unsigned int i;
+#ifdef HAVE_DBOX_HARDWARE
 	printf ("rcsim v1.1\nUsage: %s <keyname> [<time>] [<repeat>]\n"
 		"    <keyname> is an excerpt of the 'KEY_FOO'-names in <driver/rcinput.h>,\n"
 		"    <time>    is how long a code is repeatedly sent,\n"
@@ -92,6 +93,10 @@ void usage(char *n){
 		"        %s KEY_OK 2 250\n"
 		"             ; KEY_OK sent every 250ms for 2 seconds\n\n"
 		"    Keys:",n,n,n);
+#else
+	printf ("rcsim v1.1\nUsage: %s <keyname>\n\n"
+		"    Keys:",n);
+#endif
 	for (i=0;i<keynum;){
 		if ((i % 4) == 0)
 			printf ("\n    %-16s",keyname[i++].name);