diff --git a/src/lib/isMobilePhone.js b/src/lib/isMobilePhone.js
index aabd37512..8b56b769f 100644
--- a/src/lib/isMobilePhone.js
+++ b/src/lib/isMobilePhone.js
@@ -95,7 +95,7 @@ const phones = {
   'mz-MZ': /^(\+?258)?8[234567]\d{7}$/,
   'nb-NO': /^(\+?47)?[49]\d{7}$/,
   'ne-NP': /^(\+?977)?9[78]\d{8}$/,
-  'nl-BE': /^(\+?32|0)4?\d{8}$/,
+  'nl-BE': /^(\+?32|0)4\d{8}$/,
   'nl-NL': /^(((\+|00)?31\(0\))|((\+|00)?31)|0)6{1}\d{8}$/,
   'nn-NO': /^(\+?47)?[49]\d{7}$/,
   'pl-PL': /^(\+?48)? ?[5-8]\d ?\d{3} ?\d{2} ?\d{2}$/,
diff --git a/test/validators.js b/test/validators.js
index 13e066741..e8b6af96c 100644
--- a/test/validators.js
+++ b/test/validators.js
@@ -7389,9 +7389,9 @@ describe('Validators', () => {
           '0470123456',
           '+32470123456',
           '32470123456',
-          '021234567',
-          '+3221234567',
-          '3221234567',
+          '0421234567',
+          '+32421234567',
+          '32421234567',
         ],
         invalid: [
           '12345',
@@ -7403,6 +7403,9 @@ describe('Validators', () => {
           '0212345678',
           '+320212345678',
           '320212345678',
+          '021234567',
+          '+3221234567',
+          '3221234567',
         ],
       },
       {
@@ -7411,9 +7414,9 @@ describe('Validators', () => {
           '0470123456',
           '+32470123456',
           '32470123456',
-          '021234567',
-          '+3221234567',
-          '3221234567',
+          '0421234567',
+          '+32421234567',
+          '32421234567',
         ],
         invalid: [
           '12345',
@@ -7425,6 +7428,9 @@ describe('Validators', () => {
           '0212345678',
           '+320212345678',
           '320212345678',
+          '021234567',
+          '+3221234567',
+          '3221234567',
         ],
       },
       {