xlat cmp requires both arguments

diff --git a/src/lib/unlang/xlat_expr.c b/src/lib/unlang/xlat_expr.c
index 32c5bc0acf5ef8d5dc882ddf23ca3af69dbdfa2e..7a2b6482540b548089f4ce33fb337e410c709c9d 100644 (file)
--- a/src/lib/unlang/xlat_expr.c
+++ b/src/lib/unlang/xlat_expr.c
@@ -479,7 +479,7 @@ static xlat_action_t xlat_cmp_op(TALLOC_CTX *ctx, fr_dcursor_t *out,
        a = fr_value_box_list_head(in);
        b = fr_value_box_list_next(in, a);
 
-       if (!a && !b) return XLAT_ACTION_FAIL;
+       if (!a || !b) return XLAT_ACTION_FAIL;
 
        fr_assert(a->type == FR_TYPE_GROUP);
        fr_assert(b->type == FR_TYPE_GROUP);