diff --git a/upup/pkg/fi/cloud.go b/upup/pkg/fi/cloud.go
index 1c7b15c5d6..5fb051799d 100644
--- a/upup/pkg/fi/cloud.go
+++ b/upup/pkg/fi/cloud.go
@@ -150,6 +150,7 @@ var zonesToCloud = map[string]kops.CloudProviderID{
 
 	"cn-northwest-1a": kops.CloudProviderAWS,
 	"cn-northwest-1b": kops.CloudProviderAWS,
+	"cn-northwest-1c": kops.CloudProviderAWS,
 
 	"us-gov-west-1a": kops.CloudProviderAWS,
 	"us-gov-west-1b": kops.CloudProviderAWS,