diff --git a/ebean-datasource/src/main/java/io/ebean/datasource/pool/ConnectionPool.java b/ebean-datasource/src/main/java/io/ebean/datasource/pool/ConnectionPool.java
index 1e46a55..43b5ca0 100644
--- a/ebean-datasource/src/main/java/io/ebean/datasource/pool/ConnectionPool.java
+++ b/ebean-datasource/src/main/java/io/ebean/datasource/pool/ConnectionPool.java
@@ -367,6 +367,7 @@ private void testConnection() {
     } finally {
       try {
         if (conn != null) {
+          conn.rollback();
           conn.close();
         }
       } catch (SQLException ex) {