diff --git a/helpers b/helpers
index cad2bc5..093bc24 100644
--- a/helpers
+++ b/helpers
@@ -83,7 +83,7 @@ install_cert() {
 
 sign_manifest_mom() {
 	if [ -f "$CERT" ]; then
-		sudo openssl smime -sign -binary -in update/www/$MIXVER/Manifest.MoM \
+		sudo openssl smime -sign -binary -in $STATE_DIR/www/$MIXVER/Manifest.MoM \
 			-signer $CERT -inkey private.pem \
 			-outform DER -out update/www/$MIXVER/Manifest.MoM.sig
 	fi