diff --git a/lib/taskjuggler/reports/Report.rb b/lib/taskjuggler/reports/Report.rb
index 5e696984..532829da 100644
--- a/lib/taskjuggler/reports/Report.rb
+++ b/lib/taskjuggler/reports/Report.rb
@@ -297,7 +297,7 @@ def generateTJP
         if @name == '.'
           $stdout.write(@content.to_tjp)
         else
-          fileName = @name
+          fileName = absoluteFileName(@name)
           fileName += a('definitions').include?('project') ? '.tjp' : '.tji'
           File.open(fileName, 'w') { |f| f.write(@content.to_tjp) }
         end