diff --git a/lib/redmine_dmsf/webdav/dmsf_resource.rb b/lib/redmine_dmsf/webdav/dmsf_resource.rb
index 64696e06..c945bc3f 100644
--- a/lib/redmine_dmsf/webdav/dmsf_resource.rb
+++ b/lib/redmine_dmsf/webdav/dmsf_resource.rb
@@ -525,7 +525,14 @@ module RedmineDmsf
       # Token based unlock (authenticated) will ensure that a correct token is sent, further ensuring
       # ownership of token before permitting unlock
       def unlock(token)
-        return NotFound unless exist?
+        unless exist?
+          puts ">>> exists? => false"
+          puts ">>> #{subproject&.name}"
+          puts ">>> #{folder&.title}"
+          puts ">>> #{file&.name}"
+          puts ">>> #{project&.name}"
+          return NotFound
+        end
         if token.nil? || token.empty? || (token == '<(null)>') || User.current.anonymous?
           BadRequest
         else
diff --git a/test/integration/webdav/dmsf_webdav_unlock_test.rb b/test/integration/webdav/dmsf_webdav_unlock_test.rb
index be72733c..5ac65a7a 100644
--- a/test/integration/webdav/dmsf_webdav_unlock_test.rb
+++ b/test/integration/webdav/dmsf_webdav_unlock_test.rb
@@ -123,6 +123,7 @@ class DmsfWebdavUnlockTest < RedmineDmsf::Test::IntegrationTest
   def test_unlock_folder
     log_user 'jsmith', 'jsmith'
     l = @folder2.locks.first
+    puts ">>> process unlock"
     process :unlock, "/dmsf/webdav/#{@folder2.project.identifier}/#{@folder2.dmsf_folder.title}/#{@folder2.title}",
             params: nil,
             headers: @jsmith.merge!({ HTTP_DEPTH: 'infinity', HTTP_TIMEOUT: 'Infinite', HTTP_LOCK_TOKEN: l.uuid })