diff --git a/src/bullet/src/Makefile.am b/src/bullet/src/Makefile.am
index e4daf886d..8c78ff75f 100644
--- a/src/bullet/src/Makefile.am
+++ b/src/bullet/src/Makefile.am
@@ -181,11 +181,13 @@ libbulletdynamics_a_SOURCES	= \
 	BulletDynamics/ConstraintSolver/btOdeMacros.h				 \
 	BulletDynamics/ConstraintSolver/btOdeSolverBody.h			 \
 	BulletDynamics/ConstraintSolver/btOdeContactJoint.cpp			 \
+	BulletDynamics/ConstraintSolver/btOdeContactJoint.h			 \
 	BulletDynamics/ConstraintSolver/btSliderConstraint.cpp			 \
 	BulletDynamics/ConstraintSolver/btSliderConstraint.h			 \
 	BulletDynamics/ConstraintSolver/btSorLcp.cpp				 \
 	BulletDynamics/ConstraintSolver/btSorLcp.h				 \
 	BulletDynamics/ConstraintSolver/btOdeQuickstepConstraintSolver.h	 \
+	BulletDynamics/ConstraintSolver/btOdeQuickstepConstraintSolver.cpp	 \
 	BulletDynamics/ConstraintSolver/btOdeJoint.h				 \
 	BulletDynamics/ConstraintSolver/btOdeTypedJoint.h			 \
 	BulletDynamics/ConstraintSolver/btPoint2PointConstraint.cpp		 \