diff --git a/tests/platform_test b/tests/platform_test
index 22b58d9..7fbf05a 100644
--- a/tests/platform_test
+++ b/tests/platform_test
@@ -13,7 +13,7 @@
 all_platforms=
 all_platforms="$all_platforms x86-linux amd64-linux ppc32-linux ppc64-linux"
 all_platforms="$all_platforms arm-linux"
-all_platforms="$all_platforms ppc32-aix5 ppc64-aix5"
+all_platforms="$all_platforms s390x-linux"
 all_platforms="$all_platforms x86-darwin amd64-darwin"
 
 if [ $# -ne 2 ] ; then