diff --git a/project/src/global.d.ts b/project/src/global.d.ts
new file mode 100644
index 00000000..6eed4137
--- /dev/null
+++ b/project/src/global.d.ts
@@ -0,0 +1,14 @@
+export type {};
+
+declare global {
+    var G_DEBUG_CONFIGURATION: boolean;
+    var G_RELEASE_CONFIGURATION: boolean;
+    var G_MODS_ENABLED: boolean;
+    var G_MODS_TRANSPILE_TS: boolean;
+    var G_LOG_REQUESTS: boolean;
+    var G_WATERMARK_ENABLED: boolean;
+
+    var G_SPTVERSION: string;
+    var G_COMMIT: string;
+    var G_BUILDTIME: number;
+}
diff --git a/project/src/ide/TestEntry.ts b/project/src/ide/TestEntry.ts
index d37d4685..e6513e3a 100644
--- a/project/src/ide/TestEntry.ts
+++ b/project/src/ide/TestEntry.ts
@@ -16,7 +16,7 @@ globalThis.G_WATERMARK_ENABLED = false;
 
 globalThis.G_SPTVERSION = "";
 globalThis.G_COMMIT = "";
-globalThis.G_BUILDTIME = "";
+globalThis.G_BUILDTIME = 0;
 
 const program = new Program();
 program.start();