diff --git a/setup.py b/setup.py
index d5a1084..022f63e 100644
--- a/setup.py
+++ b/setup.py
@@ -150,6 +150,7 @@ ext_py_mods = [Extension('setools.policyrep._qpol',
                                              '-Wno-unused-parameter', # SWIG generates functions with unused parameters
                                              '-Wno-cast-qual', # libsepol uses const-to-nonconst casts
                                              '-Wno-shadow', # SWIG generates shadow variables
+                                             '-Wno-unreachable-code', # Bison generates unreachable code
                                              '-fno-exceptions'],
                          swig_opts=['-Ilibqpol/include'],
                          define_macros=macros,