diff --git a/filter/source/config/fragments/filters/calc_MS_Excel_2007_XML.xcu b/filter/source/config/fragments/filters/calc_MS_Excel_2007_XML.xcu
index 2979b7dc550f..2e76f5c358a7 100644
--- a/filter/source/config/fragments/filters/calc_MS_Excel_2007_XML.xcu
+++ b/filter/source/config/fragments/filters/calc_MS_Excel_2007_XML.xcu
@@ -16,7 +16,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 -->
 <node oor:name="Calc MS Excel 2007 XML" oor:op="replace">
-    <prop oor:name="Flags"><value>IMPORT EXPORT ALIEN 3RDPARTYFILTER PREFERRED ENCRYPTION PASSWORDTOMODIFY</value></prop>
+    <prop oor:name="Flags"><value>IMPORT EXPORT ALIEN 3RDPARTYFILTER PREFERRED ENCRYPTION PASSWORDTOMODIFY SUPPORTSSIGNING</value></prop>
     <prop oor:name="UIComponent"/>
     <prop oor:name="FilterService"><value>com.sun.star.comp.oox.xls.ExcelFilter</value></prop>
     <prop oor:name="UserData"/>
diff --git a/filter/source/config/fragments/filters/impress_MS_PowerPoint_2007_XML.xcu b/filter/source/config/fragments/filters/impress_MS_PowerPoint_2007_XML.xcu
index 9571dbdb869f..8814d1e4413d 100644
--- a/filter/source/config/fragments/filters/impress_MS_PowerPoint_2007_XML.xcu
+++ b/filter/source/config/fragments/filters/impress_MS_PowerPoint_2007_XML.xcu
@@ -16,7 +16,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 -->
 <node oor:name="Impress MS PowerPoint 2007 XML" oor:op="replace">
-    <prop oor:name="Flags"><value>IMPORT EXPORT ALIEN 3RDPARTYFILTER PREFERRED ENCRYPTION PASSWORDTOMODIFY</value></prop>
+    <prop oor:name="Flags"><value>IMPORT EXPORT ALIEN 3RDPARTYFILTER PREFERRED ENCRYPTION PASSWORDTOMODIFY SUPPORTSSIGNING</value></prop>
     <prop oor:name="UIComponent"/>
     <prop oor:name="FilterService"><value>com.sun.star.comp.oox.ppt.PowerPointImport</value></prop>
     <prop oor:name="UserData"/>