diff --git a/DD-API-Oper demo.ipynb b/DD-API-Oper demo.ipynb
index 28161ec..daca8bc 100644
--- a/DD-API-Oper demo.ipynb	
+++ b/DD-API-Oper demo.ipynb	
@@ -34,7 +34,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "rws = ddApiOper(\"<todo>.crt\", \"<todo>.key\")"
+    "rws = ddApiOper(\"<TODO>.crt\", \"<TODO>.key\")"
    ]
   },
   {