diff --git a/script/import_scripts/phpbb3/importers/user_importer.rb b/script/import_scripts/phpbb3/importers/user_importer.rb
index aeef5ec86..fa9065d11 100644
--- a/script/import_scripts/phpbb3/importers/user_importer.rb
+++ b/script/import_scripts/phpbb3/importers/user_importer.rb
@@ -68,7 +68,8 @@ module ImportScripts::PhpBB3
 
     def parse_birthdate(row)
       return nil if row[:user_birthday].blank?
-      Date.strptime(row[:user_birthday].delete(' '), '%d-%m-%Y') rescue nil
+      birthdate = Date.strptime(row[:user_birthday].delete(' '), '%d-%m-%Y') rescue nil
+      birthdate && birthdate.year > 0 ? birthdate : nil
     end
 
     # Suspends the user if it is currently banned.