diff --git a/kola/tests/misc/cloudinit.go b/kola/tests/misc/cloudinit.go
index d5e115656..2a78e7f94 100644
--- a/kola/tests/misc/cloudinit.go
+++ b/kola/tests/misc/cloudinit.go
@@ -231,7 +231,7 @@ func CloudInitMultipartMime(c cluster.TestCluster) {
 
 	// All files should have the same content (42). These files should have been created by the cloud-config part
 	// that declares the write_files option.
-	c.MustSSH(m, "for $file in /tmp/kola_*; do OUT=$(cat $file); if [ $OUT != 42 ]; then exit 1; fi; done")
+	c.MustSSH(m, `for f in $(ls /tmp/kola_*); do OUT=$(cat $f); if [ "$OUT" != 42 ]; then exit 1; fi; done`)
 	// Check that the x-shellscript part was executed.
 	c.MustSSH(m, "test -f /coreos-cloudinit_multipart.txt")
 	c.MustSSH(m, "test -f /kola_undercover")
diff --git a/platform/conf/conf.go b/platform/conf/conf.go
index cac2d526e..063c911fe 100644
--- a/platform/conf/conf.go
+++ b/platform/conf/conf.go
@@ -1270,7 +1270,7 @@ func (c *Conf) copyKeysScript(keys []*agent.Key) {
 func (c *Conf) copyKeysMultipartMime(keys []*agent.Key) {
 	keysAsStrings := keysToStrings(keys)
 	header := textproto.MIMEHeader{
-		"Content-Type":              []string{"text/plain; charset=\"us-ascii\""},
+		"Content-Type":              []string{"text/cloud-config; charset=\"us-ascii\""},
 		"MIME-Version":              []string{"1.0"},
 		"Content-Transfer-Encoding": []string{"7bit"},
 		"Content-Disposition":       []string{"attachment; filename=\"testing-keys.yaml\""},