diff --git a/tcl.changes b/tcl.changes
index b78a523..0f47526 100644
--- a/tcl.changes
+++ b/tcl.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Dec 21 12:58:55 UTC 2016 - bg@suse.com
+
+- Disable check for s390x for now
+
 -------------------------------------------------------------------
 Tue Jul 26 14:58:02 UTC 2016 - max@suse.com
 
diff --git a/tcl.spec b/tcl.spec
index eb277cd..e416c41 100644
--- a/tcl.spec
+++ b/tcl.spec
@@ -101,7 +101,7 @@ export HOME=$PWD/home
 # optimisation and let rpmbuild fail on unexpected test failures.
 cat > known-failures <<EOF
 EOF
-%ifnarch %arm
+%ifnarch %arm s390x
 make test 2>&1 | tee testresults
 grep FAILED testresults | grep -Fqvwf known-failures && exit 1
 %endif