diff --git a/libX11.spec b/libX11.spec
index 4eb4c69..373720b 100644
--- a/libX11.spec
+++ b/libX11.spec
@@ -5,7 +5,7 @@
 Summary: Core X11 protocol client library
 Name: libX11
 Version: 1.6.5
-Release: 4%{?gitdate:.%{gitdate}git%{gitversion}}%{?dist}
+Release: 5%{?gitdate:.%{gitdate}git%{gitversion}}%{?dist}
 License: MIT
 Group: System Environment/Libraries
 URL: http://www.x.org
@@ -82,6 +82,9 @@ find $RPM_BUILD_ROOT -name 'Xcms.txt' -delete
 # FIXME package these properly
 rm -rf $RPM_BUILD_ROOT%{_docdir}
 
+%check
+make %{?_smp_mflags} check
+
 %post -p /sbin/ldconfig
 %postun -p /sbin/ldconfig
 
@@ -121,6 +124,9 @@ rm -rf $RPM_BUILD_ROOT%{_docdir}
 %{_mandir}/man5/*.5*
 
 %changelog
+* Tue Oct 17 2017 Peter Hutterer <peter.hutterer@redhat.com> 1.6.5-5
+- run make check as part of the build (#1502658)
+
 * Tue Aug 01 2017 Adam Jackson <ajax@redhat.com> - 1.6.5-4
 - Split libX11-xcb to its own subpackage. This doesn't have much effect at
   the moment because x11-xcb.pc still lists both libX11 and libxcb in