diff --git a/re2.spec b/re2.spec
index cf88bf3..cd0ca69 100644
--- a/re2.spec
+++ b/re2.spec
@@ -3,7 +3,7 @@
 
 Name:           re2
 Version:        %{shortver}
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        C++ fast alternative to backtracking RE engines
 Group:          System Environment/Libraries
 License:        BSD
@@ -33,7 +33,6 @@ This package contains the C++ header files and symbolic links to the shared
 libraries for %{name}. If you would like to develop programs using %{name},
 you will need to install %{name}-devel.
 
-
 %prep
 %setup -q -n %{name}-%{longver}
 
@@ -42,7 +41,7 @@ you will need to install %{name}-devel.
 # http://groups.google.com/forum/?fromgroups=#!topic/re2-dev/bkUDtO5l6Lo
 # The RPM macro for the linker flags does not exist on EPEL
 %{!?__global_ldflags: %global __global_ldflags -Wl,-z,relro}
-CXXFLAGS="${CXXFLAGS:-%optflags} -pthread"
+CXXFLAGS="${CXXFLAGS:-%optflags} -pthread -std=c++11"
 LDFLAGS="${LDFLAGS:-%__global_ldflags} -pthread"
 make %{?_smp_mflags} CXXFLAGS="$CXXFLAGS" LDFLAGS="$LDFLAGS" includedir=%{_includedir} libdir=%{_libdir}
 
@@ -70,6 +69,9 @@ make %{?_smp_mflags} shared-test
 %{_libdir}/pkgconfig/%{name}.pc
 
 %changelog
+* Fri Apr 29 2016 Tom Callaway <spot@fedoraproject.org> - 20160401-2
+- hardcode -std=c++11 for older compilers
+
 * Fri Apr 29 2016 Tom Callaway <spot@fedoraproject.org> - 20160401-1
 - update to 20160401