diff --git a/CMakeLists.txt b/CMakeLists.txt
index e4cdcc313..00e7b1a10 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -470,6 +470,7 @@ IF (BUILD_UNIT_TESTS)
 ENDIF()
 
 set (BULLET_CONFIG_CMAKE_PATH lib${LIB_SUFFIX}/cmake/bullet )
+list (APPEND BULLET_DEFINITIONS ${BULLET_DOUBLE_DEF})
 list (APPEND BULLET_LIBRARIES LinearMath)
 list (APPEND BULLET_LIBRARIES Bullet3Common)
 list (APPEND BULLET_LIBRARIES BulletInverseDynamics)