diff --git a/octoprint_printhistory/__init__.py b/octoprint_printhistory/__init__.py
index 8f66c07..549fa6e 100644
--- a/octoprint_printhistory/__init__.py
+++ b/octoprint_printhistory/__init__.py
@@ -283,6 +283,9 @@ def factory_serial_handler(self, comm_instance, port, baudrate, read_timeout):
         self._comm = comm_instance
         return None
 
+    def is_blueprint_csrf_protected(self):
+        return True
+
 __plugin_name__ = "Print History Plugin"
 
 def __plugin_load__():