diff --git a/src/GEOMImpl/GEOMImpl_IImportExportOperations.hxx b/src/GEOMImpl/GEOMImpl_IImportExportOperations.hxx
index 30e8a071f..cd74bc3a0 100644
--- a/src/GEOMImpl/GEOMImpl_IImportExportOperations.hxx
+++ b/src/GEOMImpl/GEOMImpl_IImportExportOperations.hxx
@@ -26,6 +26,7 @@
 #include "GEOM_Engine.hxx"
 #include "GEOM_Object.hxx"
 
+#include <XAO_Xao.hxx>
 #include <XAO_Geometry.hxx>
 #include <XAO_BrepGeometry.hxx>