diff --git a/Course3/Lab4/validations.py b/Course3/Lab4/validations.py
index b18de65a2e..0e918757bb 100644
--- a/Course3/Lab4/validations.py
+++ b/Course3/Lab4/validations.py
@@ -18,7 +18,13 @@ def validate_user(username, minlen):
     # Usernames can't begin with a number
     if username[0].isnumeric():
         return False
+    if not re.match('[A-Za-z]', username[0]):
+        return False
     return True
 
 
 
+print(validate_user("blue.kale", 3)) # True
+print(validate_user(".blue.kale", 3)) # Currently True, should be False
+print(validate_user("red_quinoa", 4)) # True
+print(validate_user("_red_quinoa", 4)) # Currently True, should be False