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-rw-r--r--chart2/source/inc/InternalDataProvider.hxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/chart2/source/inc/InternalDataProvider.hxx b/chart2/source/inc/InternalDataProvider.hxx
index 1d7608f9a0ef..48365c9ecb67 100644
--- a/chart2/source/inc/InternalDataProvider.hxx
+++ b/chart2/source/inc/InternalDataProvider.hxx
@@ -29,6 +29,7 @@
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/util/XCloneable.hpp>
#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/weakref.hxx>
#include <map>