diff --git a/phpBB/memberlist.php b/phpBB/memberlist.php
index 351759fcbd..8169ee7a3e 100644
--- a/phpBB/memberlist.php
+++ b/phpBB/memberlist.php
@@ -1697,7 +1697,7 @@ function show_profile($data, $user_notes_enabled = false, $warn_user_enabled = f
 				$diff = ($diff < 0) ? 1 : 0;
 			}
 
-			$age = (int) ($now['year'] - $bday_year - $diff);
+			$age = max(0, (int) ($now['year'] - $bday_year - $diff));
 		}
 	}