diff --git a/Gui/DataExplorer.cmake b/Gui/DataExplorer.cmake
index 55e94dca979fe88a8be87be05be09a1df4254695..ce3934cde333b440695553210232494673f6e1b6 100644
--- a/Gui/DataExplorer.cmake
+++ b/Gui/DataExplorer.cmake
@@ -93,6 +93,7 @@ TARGET_LINK_LIBRARIES( ogs-gui
 	vtkWidgets
 	QVTK
 	${Boost_LIBRARIES}
+	zlib
 )
 
 IF(VTK_NETCDF_FOUND)