diff --git a/IO/IOSS/vtkIOSSReader.cxx b/IO/IOSS/vtkIOSSReader.cxx
index a37317fe..24b1154a 100644
--- a/IO/IOSS/vtkIOSSReader.cxx
+++ b/IO/IOSS/vtkIOSSReader.cxx
@@ -54,6 +54,7 @@
 #include VTK_IOSS(Ioss_SideBlock.h)
 #include VTK_IOSS(Ioss_SideSet.h)
 #include VTK_IOSS(Ioss_StructuredBlock.h)
+#include VTK_IOSS(Iotr_Factory.h)
 // clang-format on
 
 #include <array>
diff --git a/ThirdParty/ioss/CMakeLists.txt b/ThirdParty/ioss/CMakeLists.txt
index eeab3b90..f556903f 100644
--- a/ThirdParty/ioss/CMakeLists.txt
+++ b/ThirdParty/ioss/CMakeLists.txt
@@ -13,7 +13,7 @@ vtk_module_third_party(
     STANDARD_INCLUDE_DIRS
   EXTERNAL
     PACKAGE SEACASIoss
-    TARGETS Ioss
+    TARGETS Ioss Ionit
     USE_VARIABLES SEACASIoss_INCLUDE_DIRS
     STANDARD_INCLUDE_DIRS)