diff --git a/QP_solver/test/QP_solver/master_mps_to_derivatives.C b/QP_solver/test/QP_solver/master_mps_to_derivatives.cpp
similarity index 100%
rename from QP_solver/test/QP_solver/master_mps_to_derivatives.C
rename to QP_solver/test/QP_solver/master_mps_to_derivatives.cpp
diff --git a/QP_solver/test/QP_solver/test_MPS.C b/QP_solver/test/QP_solver/test_MPS.cpp
similarity index 100%
rename from QP_solver/test/QP_solver/test_MPS.C
rename to QP_solver/test/QP_solver/test_MPS.cpp
diff --git a/QP_solver/test/QP_solver/test_solver.C b/QP_solver/test/QP_solver/test_solver.cpp
similarity index 100%
rename from QP_solver/test/QP_solver/test_solver.C
rename to QP_solver/test/QP_solver/test_solver.cpp