diff --git a/app/services/staff_action_logger.rb b/app/services/staff_action_logger.rb
index 69acc451640..a6354ecb24a 100644
--- a/app/services/staff_action_logger.rb
+++ b/app/services/staff_action_logger.rb
@@ -134,10 +134,8 @@ class StaffActionLogger
     }))
   end
 
-  def log_site_text_change(subject, new_text, old_text, opts={})
+  def log_site_text_change(subject, new_text=nil, old_text=nil, opts={})
     raise Discourse::InvalidParameters.new(:subject) unless subject.present?
-    raise Discourse::InvalidParameters.new(:new_text) unless new_text.present?
-    raise Discourse::InvalidParameters.new(:old_text) unless old_text.present?
     UserHistory.create( params(opts).merge({
       action: UserHistory.actions[:change_site_text],
       subject: subject,
diff --git a/spec/services/staff_action_logger_spec.rb b/spec/services/staff_action_logger_spec.rb
index d1c7422c7cf..676b899dce9 100644
--- a/spec/services/staff_action_logger_spec.rb
+++ b/spec/services/staff_action_logger_spec.rb
@@ -176,8 +176,6 @@ describe StaffActionLogger do
   describe "log_site_text_change" do
     it "raises an error when params are invalid" do
       expect { logger.log_site_text_change(nil, 'new text', 'old text') }.to raise_error(Discourse::InvalidParameters)
-      expect { logger.log_site_text_change('created', nil, 'old text') }.to raise_error(Discourse::InvalidParameters)
-      expect { logger.log_site_text_change('created', 'new text', nil) }.to raise_error(Discourse::InvalidParameters)
     end
 
     it "creates a new UserHistory record" do