diff --git a/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-lockedCanvas.xsd b/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-lockedCanvas.xsd
new file mode 100644
index 0000000..46c5cf3
--- /dev/null
+++ b/xlsx/scripts/office/schemas/ISO-IEC29500-4_2016/dml-lockedCanvas.xsd
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+  xmlns="http://schemas.openxmlformats.org/drawingml/2006/lockedCanvas"
+  xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main"
+  xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships"
+  elementFormDefault="qualified"
+  targetNamespace="http://schemas.openxmlformats.org/drawingml/2006/lockedCanvas">
+  <xsd:import namespace="http://schemas.openxmlformats.org/drawingml/2006/main"
+    schemaLocation="dml-main.xsd"/>
+  <xsd:element name="lockedCanvas" type="a:CT_GvmlGroupShape"/>
+</xsd:schema>
\ No newline at end of file