diff --git a/helpers.lua b/helpers.lua
index 6206add..7bbd9c4 100644
--- a/helpers.lua
+++ b/helpers.lua
@@ -145,13 +145,15 @@ end
 local capture_cache = {}
 ShaguTweaks.GetCaptures = function(pat)
   local r = capture_cache
+
   if not r[pat] then
     for a, b, c, d, e in gfind(gsub(pat, "%((.+)%)", "%1"), gsub(pat, "%d%$", "%%(.-)$")) do
       r[pat] = { a, b, c, d, e}
     end
+
+    r[pat] = r[pat] or {}
   end
 
-  if not r[pat] then return nil, nil, nil, nil end
   return r[pat][1], r[pat][2], r[pat][3], r[pat][4], r[pat][5]
 end