diff --git a/Extras/ConvexDecomposition/CMakeLists.txt b/Extras/ConvexDecomposition/CMakeLists.txt
index be8c81c9e..ae325f496 100644
--- a/Extras/ConvexDecomposition/CMakeLists.txt
+++ b/Extras/ConvexDecomposition/CMakeLists.txt
@@ -1,5 +1,5 @@
 INCLUDE_DIRECTORIES(
- ${BULLET_PHYSICS_SOURCE_DIR}/Extras/ConvexDecomposition
+ ${BULLET_PHYSICS_SOURCE_DIR}/Extras/ConvexDecomposition ${BULLET_PHYSICS_SOURCE_DIR}/src
 )
 	
 ADD_LIBRARY(LibConvexDecomposition