diff --git a/_constraints b/_constraints
index d64b3d5..cf59e03 100644
--- a/_constraints
+++ b/_constraints
@@ -3,6 +3,7 @@
   <overwrite>
     <conditions>
       <arch>ppc64</arch>
+      <arch>s390x</arch>
     </conditions>
     <hardware>
       <memory>
@@ -13,6 +14,7 @@
   <overwrite>
     <conditions>
       <arch>ppc64</arch>
+      <arch>s390x</arch>
     </conditions>
     <hardware>
       <memory>