diff --git a/firefox.spec b/firefox.spec
index c82d4ed..9cd2d01 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -4,7 +4,7 @@
 # Disabled arm due to rhbz#1658940
 ExcludeArch: armv7hl
 # Disabled due to https://pagure.io/fedora-infrastructure/issue/7581
-ExcludeArch: s390x
+# ExcludeArch: s390x
 
 %global system_nss        1
 %global system_ffi        1