diff --git a/packages/svelte/src/compiler/interfaces.d.ts b/packages/svelte/src/compiler/interfaces.d.ts
index b38f2a597af0..64be9698f5b3 100644
--- a/packages/svelte/src/compiler/interfaces.d.ts
+++ b/packages/svelte/src/compiler/interfaces.d.ts
@@ -383,7 +383,6 @@ export interface Var {
 	writable?: boolean;
 
 	// used internally, but not exposed
-	immutable?: boolean;
 	global?: boolean;
 	internal?: boolean; // event handlers, bindings
 	initialised?: boolean;