diff --git a/IlmBase/Half/CMakeLists.txt b/IlmBase/Half/CMakeLists.txt
index 796d0117c2..47317d79de 100644
--- a/IlmBase/Half/CMakeLists.txt
+++ b/IlmBase/Half/CMakeLists.txt
@@ -4,8 +4,9 @@
 ilmbase_define_library(Half
   PRIV_EXPORT HALF_EXPORTS
   CURDIR ${CMAKE_CURRENT_SOURCE_DIR}
-  CURBINDIR ${CMAKE_CURRENT_BINARY_DIR}
   SOURCES
+    toFloat.h
+    eLut.h
     half.cpp
   HEADERS
     half.h