diff --git a/src/libutil/CMakeLists.txt b/src/libutil/CMakeLists.txt
index 1d89395ff7..941c1bbc9b 100644
--- a/src/libutil/CMakeLists.txt
+++ b/src/libutil/CMakeLists.txt
@@ -47,6 +47,7 @@ function (setup_oiio_util_library targetname)
 
     target_include_directories (${targetname}
             PUBLIC
+                $<BUILD_INTERFACE:${OpenImageIO_LOCAL_DEPS_ROOT}/include>
                 $<INSTALL_INTERFACE:include>
             PRIVATE
                 ${ROBINMAP_INCLUDES}