diff --git a/libproxy.spec b/libproxy.spec
index ecec23c..d01c8e4 100644
--- a/libproxy.spec
+++ b/libproxy.spec
@@ -4,7 +4,7 @@
 
 Name:           libproxy
 Version:        0.4.15
-Release:        23%{?dist}
+Release:        24%{?dist}
 Summary:        A library handling all the details of proxy configuration
 
 License:        LGPLv2+
@@ -152,6 +152,7 @@ developing applications that use %{name}.
 
 
 %build
+export CXXFLAGS="-std=c++14 $RPM_OPT_FLAGS"
 %{cmake} \
   -DMODULE_INSTALL_DIR=%{_libdir}/%{name}/%{version}/modules \
   -DWITH_PERL=OFF \
@@ -230,6 +231,9 @@ install -Dpm 0644 %{SOURCE1} %{buildroot}/%{_mandir}/man1/proxy.1
 
 
 %changelog
+* Tue Aug 18 2020 Jeff Law <law@redhat.com> - 0.4.15-24
+- Force C++14 as this code is not C++17 ready
+
 * Tue Aug 04 2020 Frantisek Zatloukal <fzatlouk@redhat.com> - 0.4.15-23
 - build with mozjs68
 - backport use after free fix for mozjs backend