diff --git a/src/main/java/it/grid/storm/persistence/pool/DefaultMySqlDatabaseConnector.java b/src/main/java/it/grid/storm/persistence/pool/DefaultMySqlDatabaseConnector.java
index 643c49dd..92295659 100644
--- a/src/main/java/it/grid/storm/persistence/pool/DefaultMySqlDatabaseConnector.java
+++ b/src/main/java/it/grid/storm/persistence/pool/DefaultMySqlDatabaseConnector.java
@@ -46,7 +46,7 @@ private DefaultMySqlDatabaseConnector(String database) {
     if (properties.isEmpty()) {
       this.url = format("jdbc:mysql://%s:%d/%s", hostname, port, database);
     } else {
-      this.url = format("jdbc:mysqk://%s:%d/%s?%s", hostname, port, database, properties);
+      this.url = format("jdbc:mysql://%s:%d/%s?%s", hostname, port, database, properties);
     }
   }