diff --git a/lib/DbConnection.php b/lib/DbConnection.php
index 5d9adfed..27e57f4d 100644
--- a/lib/DbConnection.php
+++ b/lib/DbConnection.php
@@ -133,7 +133,7 @@ class DbConnection{
 				}
 				elseif($ex->getCode() == '23000'){
 					// Duplicate key, bubble this up without logging it so the business logic can handle it
-					throw($ex);
+					throw new Exceptions\DuplicateDatabaseKeyException();
 				}
 				else{
 					$done = true;
diff --git a/lib/Exceptions/DuplicateDatabaseKeyException.php b/lib/Exceptions/DuplicateDatabaseKeyException.php
new file mode 100644
index 00000000..6ec98c8b
--- /dev/null
+++ b/lib/Exceptions/DuplicateDatabaseKeyException.php
@@ -0,0 +1,6 @@
+<?
+namespace Exceptions;
+
+class DuplicateDatabaseKeyException extends AppException{
+	protected $message = 'An attempted row insertion has violated the database unique index.';
+}