diff --git a/interface/CMakeLists.txt b/interface/CMakeLists.txt
index e1d93394c7..138ae02b48 100644
--- a/interface/CMakeLists.txt
+++ b/interface/CMakeLists.txt
@@ -16,7 +16,7 @@ set(FACEPLUS_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/faceplus")
 set(FACESHIFT_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/faceshift")
 set(LIBOVR_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/oculus")
 set(PRIOVR_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/priovr")
-set(SIXENSE_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/Sixense")
+set(SIXENSE_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/sixense")
 set(VISAGE_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/visage")
 set(LEAPMOTION_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/leapmotion")
 set(RTMIDI_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/rtmidi")