diff --git a/makefile.inc.in b/makefile.inc.in
index bc46e879b4..86d704ad22 100644
--- a/makefile.inc.in
+++ b/makefile.inc.in
@@ -7,7 +7,7 @@ CXX          = @CXX@
 CXXCPP       = @CXXCPP@
 CPPFLAGS     = -DFINTEGER=int @CPPFLAGS@ @OPENMP_CXXFLAGS@ @NVCC_CPPFLAGS@
 CXXFLAGS     = -fPIC @ARCH_CXXFLAGS@ -Wno-sign-compare @CXXFLAGS@
-CPUFLAGS     = @ARCH_CPUFLAGS@
+CPUFLAGS     = -mavx2 -mf16c @ARCH_CPUFLAGS@
 LDFLAGS      = @OPENMP_CXXFLAGS@ @LDFLAGS@ @NVCC_LDFLAGS@
 LIBS         = @BLAS_LIBS@ @LAPACK_LIBS@ @LIBS@ @NVCC_LIBS@
 PYTHONCFLAGS = @PYTHON_CFLAGS@ -I@NUMPY_INCLUDE@