diff --git a/src/Makefile b/src/Makefile
index b79136cbe5ad82ff19fbf69655a9fdb8924114e9..8b255c9ddc46041411d2021181f65c219b432ce9 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -28,7 +28,7 @@ NP = 5
 
 MPISRC = hierarchical.cpp  masterworker.cpp  mw_addslave.cpp \
          perf.cpp  sequential.cpp  tensormatrix_mpi.cpp      \
-         utils.cpp  utils_parall.cpp profiling.cpp
+         utils.cpp  utils_parall.cpp profiling.cpp mw_combined.cpp
 MPIOBJ= $(MPISRC:.cpp=.o)