diff --git a/commands/test.c b/commands/test.c
index d0f63c1..c4f4938 100644
--- a/commands/test.c
+++ b/commands/test.c
@@ -224,7 +224,7 @@
 	return expr;
 }
 
-static const char *test_aliases[] = { "[", NULL};
+static const char * const test_aliases[] = { "[", NULL};
 
 BAREBOX_CMD_HELP_START(test)
 BAREBOX_CMD_HELP_TEXT("Options:")