diff --git a/build.config.json b/build.config.json
index 29c318251814ba9a463de44b1909ddf65c75d40a..3d84c8e0c546420444b7acef1a4350f826b14542 100644
--- a/build.config.json
+++ b/build.config.json
@@ -4,7 +4,6 @@
 		"output": "bin"
 	},
 	"output": "FC_pregmod.html",
-	"twineformat": "sugarcube-2",
 	"gitVersionFile": "src/002-config/fc-version.js.commitHash.js",
 	"sources": {
 		"module": {
diff --git a/gulpfile.js b/gulpfile.js
index c3576981d910e0b3ca6cd4224505940db59e3c73..1f717698e9604ae03524ae2bbbe5211407a608e5 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -96,7 +96,7 @@ function tweeCompileCommand() {
 
 	let modules = [path.join(cfg.dirs.intermediate, "module")];
 	let moduleArgs = modules.map(fn => `--module=${fn}`);
-	return `${tweeCompilerExecutable()} -f ${cfg.twineformat} --head=${cfg.sources.head} -o ${path.join(cfg.dirs.intermediate, htmlOut)} ${moduleArgs.join(' ')} ${sources.join(' ')}`;
+	return `${tweeCompilerExecutable()} --head=${cfg.sources.head} -o ${path.join(cfg.dirs.intermediate, htmlOut)} ${moduleArgs.join(' ')} ${sources.join(' ')}`;
 }
 
 /**
diff --git a/src/002-config/start.tw b/src/002-config/start.tw
index 8bef19a0369019b18bfada10423c4b58d0784dd2..f54f0b07e0aa821bd3663d1efa249ef8904d2505 100644
--- a/src/002-config/start.tw
+++ b/src/002-config/start.tw
@@ -1,6 +1,8 @@
 :: StoryData
 {
-	"ifid":"18DFC483-910E-4D3B-AC31-71AE10C5015A"
+	"ifid":"18DFC483-910E-4D3B-AC31-71AE10C5015A",
+	"format": "SugarCube",
+	"format-version": "2.35.0"
 }
 
 :: Start [nobr]