diff --git a/ajv/ajv.d.ts b/ajv/ajv.d.ts
index d8bfd56ef3..304fba2512 100644
--- a/ajv/ajv.d.ts
+++ b/ajv/ajv.d.ts
@@ -82,7 +82,7 @@ declare module "ajv" {
             passContext?: boolean;
             loopRequired?: number;
             ownProperties?: boolean;
-            multipleOfPrecision?: boolean;
+            multipleOfPrecision?: boolean | number;
             errorDataPath?: string,
             messages?: boolean;
             beautify?: boolean;