diff --git a/libreoffice.spec b/libreoffice.spec
index b6facf0..76bc807 100644
--- a/libreoffice.spec
+++ b/libreoffice.spec
@@ -1455,9 +1455,11 @@ for jar in %{buildroot}%{baseinstdir}/program/classes/*.jar; do
 done
 
 %check
+%ifnarch s390x
 make unitcheck slowcheck
 # we don't need this anymore
 rm -f %{buildroot}%{baseinstdir}/program/classes/smoketest.jar
+%endif
 
 %files