diff --git a/rmbox/rmbox.c b/rmbox/rmbox.c
index 671a2d1be..b66ce1c96 100644
--- a/rmbox/rmbox.c
+++ b/rmbox/rmbox.c
@@ -41,8 +41,8 @@ static void usage(void)
 	fprintf(stdout, "%s:\t \t\t\tDisplay mailbox contents\n", APP_NAME);
 	fprintf(stdout, "%s:\t -i infile -o outfile\tDump infile contents to outfile\n", APP_NAME);
 #ifdef LOGGER_FORMAT
-	fprintf(stdout, "%s:\t -l *.ldc_file\t-i in_file\n", APP_NAME);
-	fprintf(stdout, "%s:\t -p \tinput from stdin\n", APP_NAME);
+	fprintf(stdout, "%s:\t -l *.ldc_file\t\t*.ldc files generated by rimage\n", APP_NAME);
+	fprintf(stdout, "%s:\t -p \t\t\tInput from stdin\n", APP_NAME);
 #endif
 	fprintf(stdout, "%s:\t -c\t\t\tSet timestamp clock in MHz\n", APP_NAME);
 	fprintf(stdout, "%s:\t -s\t\t\tTake a snapshot of state\n", APP_NAME);