diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c89c282e76636b56439ebb0ed9da8d319a1bd98..8bdecc46182a637d84b6779ca34e2d492fb30a0b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -100,7 +100,7 @@ if (UNIX)
   endif()  
 endif()
 option(${PROJECT_NAME}_USE_VRPN "Build with VRPN support" OFF)
-option(${PROJECT_NAME}_USE_PHYSX "Build with Physx support" ON)
+option(${PROJECT_NAME}_USE_PHYSX "Build with Physx support" OFF)
 
 #-----------------------------------------------------------------------------
 # CTest/Dashboards