diff --git a/interface/CMakeLists.txt b/interface/CMakeLists.txt
index 1d86e7601b..1c9c68ec5f 100644
--- a/interface/CMakeLists.txt
+++ b/interface/CMakeLists.txt
@@ -2,7 +2,7 @@ set(TARGET_NAME interface)
 project(${TARGET_NAME})
 
 # set a default root dir for each of our optional externals if it was not passed
-set(OPTIONAL_EXTERNALS "Faceshift" "LibOVR" "PrioVR" "Sixense" "Visage" "LeapMotion" "RtMidi" "Qxmpp" "SDL2" "GVERB") 
+set(OPTIONAL_EXTERNALS "Faceshift" "LibOVR" "PrioVR" "Sixense" "Visage" "LeapMotion" "RtMidi" "Qxmpp" "SDL2" "Gverb")
 foreach(EXTERNAL ${OPTIONAL_EXTERNALS})
   string(TOUPPER ${EXTERNAL} ${EXTERNAL}_UPPERCASE)
   if (NOT ${${EXTERNAL}_UPPERCASE}_ROOT_DIR)