diff --git a/test/internet.spec.ts b/test/internet.spec.ts
index 04393b90146..b590d0aa34d 100644
--- a/test/internet.spec.ts
+++ b/test/internet.spec.ts
@@ -87,7 +87,10 @@ describe('internet', () => {
 
           const [prefix, suffix] = email.split('@');
 
-          expect(prefix).toMatch(/^Aiden.Harann55/);
+          expect(prefix).includes('Aiden.Harann55');
+          expect(prefix).toMatch(
+            /^(Aiden\.Harann55((\d{2})|([._][A-Za-z]*\d{2})|([._][A-Za-z]*)))/
+          );
           expect(faker.definitions.internet.free_email).toContain(suffix);
         });
 
@@ -100,7 +103,10 @@ describe('internet', () => {
 
           const [prefix, suffix] = email.split('@');
 
-          expect(prefix).toMatch(/^Aiden([._]Harann)?\d*/);
+          expect(prefix).includes('Aiden');
+          expect(prefix).toMatch(
+            /^Aiden((\d{2})|([._]Harann\d{2})|([._](Harann)))/
+          );
           expect(faker.definitions.internet.free_email).toContain(suffix);
         });
 
@@ -229,9 +235,10 @@ describe('internet', () => {
 
           expect(username).toBeTruthy();
           expect(username).toBeTypeOf('string');
-          expect(username).toMatch(/\w/);
           expect(username).includes('Aiden');
-          // FIXME @Shinigami92 2022-02-11: The lastName is sometimes not taken
+          expect(username).toMatch(
+            /^Aiden((\d{2})|([._]Harann\d{2})|([._](Harann)))/
+          );
         });
       });