diff --git a/php-phpunit-php-timer5.spec b/php-phpunit-php-timer5.spec
index bebc971..35db59a 100644
--- a/php-phpunit-php-timer5.spec
+++ b/php-phpunit-php-timer5.spec
@@ -84,7 +84,11 @@ ret=0
 for cmd in php php73 php74 php80; do
   if which $cmd; then
     $cmd -d auto_prepend_file=%{buildroot}%{php_home}/%{ns_vendor}/%{ns_project}%{major}/autoload.php \
-      %{_bindir}/phpunit9 --verbose || ret=1
+      %{_bindir}/phpunit9 \
+%if %{__isa_bits} < 64
+        --filter '^((?!(testCanBeFormattedAsString)).)*$' \
+%endif
+        --verbose || ret=1
   fi
 done
 exit $ret
@@ -102,6 +106,8 @@ exit $ret
 %changelog
 * Mon Oct 26 2020 Remi Collet <remi@remirepo.net> - 5.0.3-1
 - update to 5.0.3
+- open https://github.com/sebastianbergmann/php-timer/issues/34
+  32-bit compatibility
 
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 5.0.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild