diff --git a/src/compiler/interfaces.ts b/src/compiler/interfaces.ts
index 42781cbdad..ddd0b4a629 100644
--- a/src/compiler/interfaces.ts
+++ b/src/compiler/interfaces.ts
@@ -13,7 +13,7 @@ export interface Text extends BaseNode {
 
 export interface MustacheTag extends BaseNode {
 	type: 'MustacheTag',
-	expresion: Node;
+	expression: Node;
 }
 
 export type DirectiveType = 'Action'