diff --git a/lib/transaction.js b/lib/transaction.js
index f0672d8..575df6e 100644
--- a/lib/transaction.js
+++ b/lib/transaction.js
@@ -53,8 +53,8 @@ function mixinTransaction(Oracle, oracle) {
   Oracle.prototype.commit = function(connection, cb) {
     debug('Commit a transaction');
     connection.commit(function(err) {
-      if (err) return cb(err);
       connection.release(cb);
+      if (err) return cb(err);
     });
   };
 
@@ -66,8 +66,8 @@ function mixinTransaction(Oracle, oracle) {
   Oracle.prototype.rollback = function(connection, cb) {
     debug('Rollback a transaction');
     connection.rollback(function(err) {
-      if (err) return cb(err);
       connection.release(cb);
+      if (err) return cb(err);
     });
   };
 }