diff --git a/enblend.spec b/enblend.spec
index 13c074b..194ca26 100644
--- a/enblend.spec
+++ b/enblend.spec
@@ -1,7 +1,7 @@
 Summary: Image Blending with Multiresolution Splines
 Name: enblend
 Version: 4.2
-Release: 18%{?dist}
+Release: 19%{?dist}
 License: GPLv2+
 Source0: http://downloads.sourceforge.net/enblend/enblend-enfuse-%{version}.tar.gz
 Patch0: enblend-limits.patch
@@ -44,7 +44,7 @@ PDF usage documentation for the enblend and enfuse command line tools
 %patch0 -p1
 
 %build
-export CPPFLAGS=-I/usr/include/gperftools
+export CPPFLAGS="-std=gnu++14 -I/usr/include/gperftools"
 %configure --with-boost-filesystem --with-tcmalloc --enable-opencl --enable-openmp
 make %{?_smp_mflags}
 
@@ -64,6 +64,9 @@ make install DESTDIR=%{buildroot}
 #{_docdir}/enblend-enfuse/examples/enfuse/*
 
 %changelog
+* Mon Sep 14 2020 Jeff Law <law@fedoraproject.org> - 4.2-19
+- Force C++14 as this code is not C++17 ready
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.2-18
 - Fix mass rebuild failure by adding core perl modules to BuildRequires. patch to #include <limits>