diff --git a/channels/candidate-4.3.yaml b/channels/candidate-4.3.yaml
index 940619c9d..7b1052b84 100644
--- a/channels/candidate-4.3.yaml
+++ b/channels/candidate-4.3.yaml
@@ -1,5 +1,7 @@
 name: candidate-4.3
 versions:
+# until s390 is released on 4.3 we may not want to include it in 4.3 channels
+- 4.2.16+amd64
 - 4.3.0-rc.0
 # I'm not sure what happened to rc1 and rc2. rc2 was, I think, fine
 # but it never got upgrade tests https://github.com/openshift/cincinnati-graph-data/pull/26