diff --git a/packages/core/macro/index.d.ts b/packages/core/macro/index.d.ts
index 8559e0279..8a26aa185 100644
--- a/packages/core/macro/index.d.ts
+++ b/packages/core/macro/index.d.ts
@@ -232,4 +232,4 @@ export const msg: typeof defineMessage
 /**
  * Helps to define a name for a variable in the message
  */
-export function ph(def: LabeledExpression): string
+export function ph(def: LabeledExpression<string | number>): string