diff -ura terminator-1.91.orig/terminatorlib/plugins/custom_commands.py terminator-1.91.new/terminatorlib/plugins/custom_commands.py
--- terminator-1.91.orig/terminatorlib/plugins/custom_commands.py	2017-02-26 14:45:29.000000000 -0300
+++ terminator-1.91.new/terminatorlib/plugins/custom_commands.py	2018-04-10 18:22:55.566435800 -0300
@@ -127,7 +127,7 @@
       if command[-1] != '\n':
         command = command + '\n'
       for terminal in data['terminals']:
-        terminal.vte.feed_child(command,  len(command))
+        terminal.vte.feed_child(command)
 
     def configure(self, widget, data = None):
       ui = {}