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-rw-r--r--xmloff/source/core/xmlimp.cxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/xmloff/source/core/xmlimp.cxx b/xmloff/source/core/xmlimp.cxx
index 1f21acef1876..d3973c87e16c 100644
--- a/xmloff/source/core/xmlimp.cxx
+++ b/xmloff/source/core/xmlimp.cxx
@@ -18,6 +18,7 @@
*/
#include <memory>
+#include <optional>
#include <tools/diagnose_ex.h>
#include <sal/log.hxx>