diff --git a/src/BulletSoftBody/CMakeLists.txt b/src/BulletSoftBody/CMakeLists.txt
index 06059c77b..8c1e9c022 100644
--- a/src/BulletSoftBody/CMakeLists.txt
+++ b/src/BulletSoftBody/CMakeLists.txt
@@ -16,7 +16,6 @@ SET(BulletSoftBody_SRCS
 	btSoftMultiBodyDynamicsWorld.cpp
 	btSoftSoftCollisionAlgorithm.cpp
 	btDefaultSoftBodySolver.cpp
-	btDeformableMultiBodyConstraintSolver.cpp
 
 	btDeformableBackwardEulerObjective.cpp
 	btDeformableBodySolver.cpp