diff --git a/CMakeLists.txt b/CMakeLists.txt
index efd1b23..6b8ba25 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,7 @@ set( OCIO_PATH                   ${GAFFER_ROOT} CACHE INTERNAL "" )
 set( GLEW_ROOT_DIR               ${GAFFER_ROOT} CACHE INTERNAL "" )
 set( WITH_OPENVDB                ON CACHE INTERNAL "" )
 set( OPENVDB_ROOT_DIR            ${GAFFER_ROOT} CACHE INTERNAL "" )
-set( TBB_INSTALL_DIR             ${GAFFER_ROOT} CACHE INTERNAL "" )
+set( TBB_ROOT_DIR                ${GAFFER_ROOT} CACHE INTERNAL "" )
 if (MSVC)
     set( ZLIB_ROOT ${GAFFER_ROOT} CACHE INTERNAL "" )
     set( ZLIB_INCLUDE_DIRS ${GAFFER_ROOT}/include CACHE INTERNAL "" )
diff --git a/cycles b/cycles
index 11e3ab5..53f25d7 160000
--- a/cycles
+++ b/cycles
@@ -1 +1 @@
-Subproject commit 11e3ab51d577eabf5597926d42fa228e1cb988f0
+Subproject commit 53f25d70df48f62157fd750b503068790f1ff7f3