diff --git a/src/BulletSoftBody/btDeformableNeoHookeanForce.h b/src/BulletSoftBody/btDeformableNeoHookeanForce.h
index e0f1b76d1..589abf2e3 100644
--- a/src/BulletSoftBody/btDeformableNeoHookeanForce.h
+++ b/src/BulletSoftBody/btDeformableNeoHookeanForce.h
@@ -19,7 +19,6 @@ subject to the following restrictions:
 #include "btDeformableLagrangianForce.h"
 #include "LinearMath/btQuickprof.h"
 #include "LinearMath/btImplicitQRSVD.h"
-#include "Eigen"
 // This energy is as described in https://graphics.pixar.com/library/StableElasticity/paper.pdf
 class btDeformableNeoHookeanForce : public btDeformableLagrangianForce
 {