diff --git a/deno/lib/types.ts b/deno/lib/types.ts
index c1364a9b5..9a6311289 100644
--- a/deno/lib/types.ts
+++ b/deno/lib/types.ts
@@ -41,10 +41,10 @@ import {
 ///////////////////////////////////////
 ///////////////////////////////////////
 
-export type RefinementCtx = {
+export interface RefinementCtx {
   addIssue: (arg: IssueData) => void;
   path: (string | number)[];
-};
+}
 export type ZodRawShape = { [k: string]: ZodTypeAny };
 export type ZodTypeAny = ZodType<any, any, any>;
 export type TypeOf<T extends ZodType<any, any, any>> = T["_output"];
diff --git a/src/types.ts b/src/types.ts
index a5217d4a2..f89acb5e0 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -41,10 +41,10 @@ import {
 ///////////////////////////////////////
 ///////////////////////////////////////
 
-export type RefinementCtx = {
+export interface RefinementCtx {
   addIssue: (arg: IssueData) => void;
   path: (string | number)[];
-};
+}
 export type ZodRawShape = { [k: string]: ZodTypeAny };
 export type ZodTypeAny = ZodType<any, any, any>;
 export type TypeOf<T extends ZodType<any, any, any>> = T["_output"];