diff --git a/index.d.ts b/index.d.ts
index 3444114..19fbe6f 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -925,7 +925,7 @@ export type ValidationSchema<T = any> = ValidationSchemaMetaKeys & {
 	/**
 	 * List of validation rules for each defined field
 	 */
-	[key in keyof T]: ValidationRule | undefined | any;
+	[key in keyof T]: ValidationRule | undefined;
 }
 
 
diff --git a/lib/rules/enum.js b/lib/rules/enum.js
index 696399f..bd8fb5f 100644
--- a/lib/rules/enum.js
+++ b/lib/rules/enum.js
@@ -3,11 +3,12 @@
 /**	Signature: function(value, field, parent, errors, context)
  */
 module.exports = function({ schema, messages }, path, context) {
-	const enumStr = JSON.stringify(schema.values || []);
+	const values = schema.values || [];
+	const enumStr = JSON.stringify(values);
 	return {
 		source: `
 			if (${enumStr}.indexOf(value) === -1)
-				${this.makeError({ type: "enumValue", expected: "\"" + schema.values.join(", ") + "\"", actual: "value", messages })}
+				${this.makeError({ type: "enumValue", expected: JSON.stringify(values.join(", ")), actual: "value", messages })}
 			
 			return value;
 		`
diff --git a/test/rules/enum.spec.js b/test/rules/enum.spec.js
index 8459f2a..07ec639 100644
--- a/test/rules/enum.spec.js
+++ b/test/rules/enum.spec.js
@@ -23,6 +23,19 @@ describe("Test rule: enum", () => {
 		expect(check(false)).toEqual(true);
 	});
 
+	it("should handle enum values containing double-quotes", () => {
+		const check = v.compile({ $$root: true, type: "enum", values: ["active", "in\"active", "pending"] });
+
+		expect(check("active")).toEqual(true);
+		expect(check("pending")).toEqual(true);
+		expect(check("bad")).toEqual([{
+			type: "enumValue",
+			expected: "active, in\"active, pending",
+			actual: "bad",
+			message: "The '' field value 'active, in\"active, pending' does not match any of the allowed values."
+		}]);
+	});
+
 	it("should allow custom metas", async () => {
 		const schema = {
 			$$foo: {