diff --git a/slurm.changes b/slurm.changes
index 2a51996..ff93452 100644
--- a/slurm.changes
+++ b/slurm.changes
@@ -5,6 +5,7 @@ Tue Jul  7 09:05:40 UTC 2020 - Egbert Eich <eich@suse.com>
 - Do not run %check on SLE-12-SP2: Some incompatibility in tcl
   makes this fail.
 - Remove unneeded build dependency to postgresql-devel.
+- Disable build on s390 (requires 64bit).
 
 -------------------------------------------------------------------
 Wed Jun  3 11:11:11 UTC 2020 - Egbert Eich <eich@suse.com>
diff --git a/slurm.spec b/slurm.spec
index f743048..5818ebc 100644
--- a/slurm.spec
+++ b/slurm.spec
@@ -28,7 +28,7 @@
 
 %define pname slurm
 
-%ifarch i586 %arm
+%ifarch i586 %arm s390
 ExclusiveArch:  do_not_build
 %endif