diff --git a/contrib/lua/memeposting.lua b/contrib/lua/memeposting.lua
index 5a1d879..ec91ee0 100644
--- a/contrib/lua/memeposting.lua
+++ b/contrib/lua/memeposting.lua
@@ -18,6 +18,12 @@ function psy_text(str)
 end
 
 function pre_text(str)
+
+  str = str:gsub("%(", "(")
+  str = str:gsub("%)", ")")
+  str = str:gsub("%[", "[")
+  str = str:gsub("\\", "\")
+  str = str:gsub("%]", "]")
   return span_text("code", str:gsub("%|", "|"))
 end