diff --git a/user/tb/interp.c b/user/tb/interp.c
index d8bd79e..1cc3af1 100644
--- a/user/tb/interp.c
+++ b/user/tb/interp.c
@@ -81,7 +81,7 @@ void tz_expandspecial(Tokenizer *tz) {
     if (tk->str[0] == '$' && string_len(tk->str) > 1) {
       RtAlias *alias, *aliastmp;
       LL_FOREACH_SAFE(RTALIASES, alias, aliastmp) {
-        if (string_strcmp(alias->namebuf, tk->str) == 0) {
+        if (string_strcmp(alias->namebuf, tk->str+1) == 0) {
           ufree(tk->str);
           size_t len = string_len(alias->valbuf)+1;
           tk->str = umalloc(len);