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-rw-r--r--tools/env/fw_env_main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/env/fw_env_main.c b/tools/env/fw_env_main.c
index baf3a4d..c654057 100644
--- a/tools/env/fw_env_main.c
+++ b/tools/env/fw_env_main.c
@@ -105,6 +105,10 @@ main(int argc, char *argv[])
case 'h':
usage();
return EXIT_SUCCESS;
+ default: /* '?' */
+ fprintf(stderr, "Try `%s --help' for more information."
+ "\n", cmdname);
+ return EXIT_FAILURE;
}
}