diff --git a/src/olympic/keel/src/pack-applib.cpp b/src/olympic/keel/src/pack-applib.cpp
index a486f890..820a2a48 100644
--- a/src/olympic/keel/src/pack-applib.cpp
+++ b/src/olympic/keel/src/pack-applib.cpp
@@ -76,7 +76,7 @@ static ox::Error pack(
 	oxReturnError(appendBinary(romBuff, dstBuff, *pl));
 	oxOutf("Final ROM buff size: {} bytes\n", romBuff.size());
 	oxReturnError(writeFileBuff(argRomBin, romBuff));
-	oxRequire(manifestJson, ox::writeOC<ox::String>(manifest));
+	oxRequire(manifestJson, ox::writeOCString(manifest));
 	oxReturnError(writeFileBuff(argManifest, {manifestJson.data(), manifestJson.len()}));
 	return {};
 }