diff --git a/oox/source/export/drawingml.cxx b/oox/source/export/drawingml.cxx
index 0e5fb0ff71fb..598a330229e9 100644
--- a/oox/source/export/drawingml.cxx
+++ b/oox/source/export/drawingml.cxx
@@ -102,8 +102,6 @@ using ::com::sun::star::text::XTextField;
 using ::com::sun::star::text::XTextRange;
 using ::sax_fastparser::FSHelperPtr;
 
-DBG(extern void dump_pset(Reference< XPropertySet > rXPropSet));
-
 namespace oox {
 namespace drawingml {