diff --git a/cxxtools.spec b/cxxtools.spec
index dc53957..a0d8a28 100644
--- a/cxxtools.spec
+++ b/cxxtools.spec
@@ -54,7 +54,7 @@ find -name "*.h" -exec chmod -x {} \;
     --with-atomictype=pthread \
 %endif
     %{nil}
-%make_build CXXFLAGS="%{optflags} -std=gnu++14"
+%make_build
 
 %install
 %make_install