diff --git a/commands/help.c b/commands/help.c
index 819c406..34ffa9a 100644
--- a/commands/help.c
+++ b/commands/help.c
@@ -139,7 +139,7 @@
 BAREBOX_CMD_HELP_OPT ("-v", "verbose")
 BAREBOX_CMD_HELP_END
 
-static const char *help_aliases[] = { "?", NULL};
+static const char * const help_aliases[] = { "?", NULL};
 
 BAREBOX_CMD_START(help)
 	.cmd		= do_help,