diff --git a/apps/tagcache.c b/apps/tagcache.c
index db70cd5b34..f6a42d0088 100644
--- a/apps/tagcache.c
+++ b/apps/tagcache.c
@@ -751,7 +751,7 @@ static bool tempbuf_insert(char *str, int id)
     /* Make sure the entry is long aligned. */
     if ((long)index[tempbufidx].id & 0x03)
     {
-        int fix = 4 - ((long)id & 0x03);
+        int fix = 4 - ((long)index[tempbufidx].id & 0x03);
         tempbuf_left -= fix;
         tempbuf_pos += fix;
         index[tempbufidx].id = (struct tempbuf_id *)((