diff --git a/app/models/issue_trackers/fogbugz_tracker.rb b/app/models/issue_trackers/fogbugz_tracker.rb
index 89d4797..bc98aab 100644
--- a/app/models/issue_trackers/fogbugz_tracker.rb
+++ b/app/models/issue_trackers/fogbugz_tracker.rb
@@ -22,7 +22,7 @@ class IssueTrackers::FogbugzTracker < IssueTracker
     end
   end
 
-  def create_issue(problem, reported_by)
+  def create_issue(problem, reported_by = nil = nil)
     fogbugz = Fogbugz::Interface.new(:email => username, :password => password, :uri => "https://#{account}.fogbugz.com")
     fogbugz.authenticate
 
diff --git a/app/models/issue_trackers/github_issues_tracker.rb b/app/models/issue_trackers/github_issues_tracker.rb
index 7a04211..4bcda99 100644
--- a/app/models/issue_trackers/github_issues_tracker.rb
+++ b/app/models/issue_trackers/github_issues_tracker.rb
@@ -19,7 +19,7 @@ class IssueTrackers::GithubIssuesTracker < IssueTracker
     end
   end
 
-  def create_issue(problem, reported_by)
+  def create_issue(problem, reported_by = nil)
     client = Octokit::Client.new(:login => username, :token => api_token)
     issue = client.create_issue(project_id, issue_title(problem), body_template.result(binding).unpack('C*').pack('U*'), options = {})
     problem.update_attribute :issue_link, issue.html_url
diff --git a/app/models/issue_trackers/lighthouse_tracker.rb b/app/models/issue_trackers/lighthouse_tracker.rb
index c871046..6a9829c 100644
--- a/app/models/issue_trackers/lighthouse_tracker.rb
+++ b/app/models/issue_trackers/lighthouse_tracker.rb
@@ -18,7 +18,7 @@ class IssueTrackers::LighthouseTracker < IssueTracker
     end
   end
 
-  def create_issue(problem, reported_by)
+  def create_issue(problem, reported_by = nil)
     Lighthouse.account = account
     Lighthouse.token = api_token
     # updating lighthouse account
diff --git a/app/models/issue_trackers/mingle_tracker.rb b/app/models/issue_trackers/mingle_tracker.rb
index f5d15d3..5a745f4 100644
--- a/app/models/issue_trackers/mingle_tracker.rb
+++ b/app/models/issue_trackers/mingle_tracker.rb
@@ -27,7 +27,7 @@ class IssueTrackers::MingleTracker < IssueTracker
     end
   end
 
-  def create_issue(problem, reported_by)
+  def create_issue(problem, reported_by = nil)
     properties = ticket_properties_hash
     basic_auth = account.gsub(/https?:\/\//, "https://#{username}:#{password}@")
     Mingle.set_site "#{basic_auth}/api/v1/projects/#{project_id}/"
diff --git a/app/models/issue_trackers/pivotal_labs_tracker.rb b/app/models/issue_trackers/pivotal_labs_tracker.rb
index d63b7b2..6242490 100644
--- a/app/models/issue_trackers/pivotal_labs_tracker.rb
+++ b/app/models/issue_trackers/pivotal_labs_tracker.rb
@@ -13,7 +13,7 @@ class IssueTrackers::PivotalLabsTracker < IssueTracker
     end
   end
 
-  def create_issue(problem, reported_by)
+  def create_issue(problem, reported_by = nil)
     PivotalTracker::Client.token = api_token
     PivotalTracker::Client.use_ssl = true
     project = PivotalTracker::Project.find project_id.to_i
diff --git a/app/models/issue_trackers/redmine_tracker.rb b/app/models/issue_trackers/redmine_tracker.rb
index 14e6e04..a12b577 100644
--- a/app/models/issue_trackers/redmine_tracker.rb
+++ b/app/models/issue_trackers/redmine_tracker.rb
@@ -25,7 +25,7 @@ class IssueTrackers::RedmineTracker < IssueTracker
     end
   end
 
-  def create_issue(problem, reported_by)
+  def create_issue(problem, reported_by = nil)
     token = api_token
     acc = account
     RedmineClient::Base.configure do
--
libgit2 0.21.2