diff --git a/config/application.rb b/config/application.rb
index a876d8dba..38948c7e7 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -57,7 +57,7 @@ module Scinote
 
     config.x.webhooks_enabled = ENV['ENABLE_WEBHOOKS'] == 'true'
 
-    config.x.zebra_print_enabled = ENV['ENABLE_ZEBRA_PRINTERS'] == 'true'
+    config.x.zebra_print_enabled = false
 
     # Logging
     config.log_formatter = proc do |severity, datetime, progname, msg|
diff --git a/config/initializers/extends.rb b/config/initializers/extends.rb
index 8387d14ad..5813b3c5e 100644
--- a/config/initializers/extends.rb
+++ b/config/initializers/extends.rb
@@ -421,7 +421,7 @@ class Extends
     label_template_deleted: 218,
     label_template_copied: 219,
     edit_protocol_name_in_repository: 220,
-    protocol_name_in_task_edited: 221
+    protocol_name_in_task_edited: 221,
     task_step_duplicated: 222,
     protocol_step_duplicated: 223,
     task_step_text_duplicated: 224,