diff --git a/lib/EnvError.ts b/lib/EnvError.ts
index 75b3d8f..73704c0 100644
--- a/lib/EnvError.ts
+++ b/lib/EnvError.ts
@@ -1,15 +1,15 @@
 import { EnvSchemaValue } from './types';
 
 export enum EnvErrorType {
-    MISSING,
-    WRONG_TYPE,
+    MISSING = 'MISSING',
+    WRONG_TYPE = 'WRONG_TYPE',
 }
 
 export type EnvErrorReport = {
     [key: string]: {
         type: EnvErrorType;
         schemaValue: EnvSchemaValue;
-        value?: string;
+        receivedValue?: string;
     };
 };
 
@@ -26,8 +26,8 @@ export class EnvError extends Error {
 
 function formatReport(report: EnvErrorReport) {
     const errors = Object.entries(report).map(entry => {
-        const [key, { type, schemaValue, value }] = entry;
-        return formatError(key, type, schemaValue, value);
+        const [key, { type, schemaValue, receivedValue }] = entry;
+        return formatError(key, type, schemaValue, receivedValue);
     });
     return `Invalid or missing environment variables\n    - ${errors.join('\n    - ')}\n`;
 }
diff --git a/lib/validate.ts b/lib/validate.ts
index 140232b..0f93018 100644
--- a/lib/validate.ts
+++ b/lib/validate.ts
@@ -36,7 +36,7 @@ function validateSchema(schema: EnvSchema, env: Env): EnvErrorReport | null {
             report[key] = {
                 type: EnvErrorType.WRONG_TYPE,
                 schemaValue,
-                value,
+                receivedValue: value,
             };
         }
     }
diff --git a/tests/__snapshots__/validate.test.ts.snap b/tests/__snapshots__/validate.test.ts.snap
index 9902fe2..52c7335 100644
--- a/tests/__snapshots__/validate.test.ts.snap
+++ b/tests/__snapshots__/validate.test.ts.snap
@@ -1,7 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`validate reporting should report badly typed variables 1`] = `
-"EnvError: Invalid or missing environment variables
+"Invalid or missing environment variables
     - Expected value for key 'BOOLEAN' of type Boolean; got '123'
     - Expected value for key 'NUMBER' of type Number; got 'abc'
     - Expected value for key 'REGEXP' to match /abc/; got 'true'
@@ -9,7 +9,7 @@ exports[`validate reporting should report badly typed variables 1`] = `
 `;
 
 exports[`validate reporting should report missing variables 1`] = `
-"EnvError: Invalid or missing environment variables
+"Invalid or missing environment variables
     - Expected value for key 'MISSING'; none found
 "
 `;