diff --git a/lib/metasploit/framework/jtr/wordlist.rb b/lib/metasploit/framework/jtr/wordlist.rb
index 5b779b4000..ebbd9ba83d 100644
--- a/lib/metasploit/framework/jtr/wordlist.rb
+++ b/lib/metasploit/framework/jtr/wordlist.rb
@@ -375,7 +375,7 @@ module Metasploit
           valid!
           wordlist_file = Rex::Quickfile.new("jtrtmp")
           each_word do |word|
-            wordlist_file.puts max_len == 0 ? word : word[0..max_len]
+            wordlist_file.puts max_len == 0 ? word : word[0..max_len-1]
           end
           wordlist_file
         end