diff --git a/cmake/Modules/G4InterfaceOptions.cmake b/cmake/Modules/G4InterfaceOptions.cmake
index beac8ea117b..6a7cd4e1b96 100644
--- a/cmake/Modules/G4InterfaceOptions.cmake
+++ b/cmake/Modules/G4InterfaceOptions.cmake
@@ -80,6 +80,7 @@ if(GEANT4_USE_VTK)
     CommonColor
     InteractionStyle
     IOExport
+    IOImport
     IOGeometry
     IOLegacy
     IOPLY