diff --git a/tiny.lua b/tiny.lua
index 9f6e23c..f99dff5 100644
--- a/tiny.lua
+++ b/tiny.lua
@@ -136,7 +136,7 @@ do
             subParts[#subParts + 1] = buildPart(p:sub(2, -2))
             return ('\255%d'):format(#subParts)
         end)
-        for invert, part, sep in str:gmatch('(%!?)([^%|%&%!]+)([%|%&%!]?)') do
+        for invert, part, sep in str:gmatch('(%!?)([^%|%&%!]+)([%|%&]?)') do
             if part:match('^\255%d+$') then
                 local partIndex = tonumber(part:match(part:sub(2)))
                 accum[#accum + 1] = ('%s(%s)'):format(invert == '' and '' or 'not', subParts[partIndex])