diff --git a/src/BulletCollision/CMakeLists.txt b/src/BulletCollision/CMakeLists.txt
index 3169f1519..b36afe5c1 100644
--- a/src/BulletCollision/CMakeLists.txt
+++ b/src/BulletCollision/CMakeLists.txt
@@ -47,6 +47,8 @@ ADD_LIBRARY(LibBulletCollision
 				CollisionShapes/btTriangleMesh.cpp
 				CollisionShapes/btTriangleMeshShape.cpp
 				NarrowPhaseCollision/btContinuousConvexCollision.cpp
+				NarrowPhaseCollision/btGjpEpa.cpp
+				NarrowPhaseCollision/btGjkEpaPenetrationDepthSolver.cpp
 				NarrowPhaseCollision/btConvexCast.cpp
 				NarrowPhaseCollision/btGjkConvexCast.cpp
 				NarrowPhaseCollision/btGjkPairDetector.cpp