diff --git a/extensions/CMakeLists.txt b/extensions/CMakeLists.txt
index 762b44a373..9dbbb1e27a 100644
--- a/extensions/CMakeLists.txt
+++ b/extensions/CMakeLists.txt
@@ -63,10 +63,10 @@ if(USE_BULLET)
     set_target_properties(OpenGLWindow PROPERTIES FOLDER Bullet3)
     set_target_properties(LinearMath PROPERTIES FOLDER Bullet3)
     
-    SET (LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR} CACHE PATH "Reset bullet paths")
-    set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
-    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
-    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
+    SET (LIBRARY_OUTPUT_PATH "" CACHE PATH "Reset bullet paths")
+    set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "")
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "")
+    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "")
 
     include_directories(BEFORE "lib/bullet3/src")
 endif()