diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/common/ConfigurationController.java b/libreplan-webapp/src/main/java/org/libreplan/web/common/ConfigurationController.java
index abd889adf..bef2292c9 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/common/ConfigurationController.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/common/ConfigurationController.java
@@ -227,7 +227,8 @@ public class ConfigurationController extends GenericForwardComposer {
                 configurationModel.confirm();
                 configurationModel.init();
                 messages.showMessage(Level.INFO, _("Changes saved"));
-                if (!configurationModel
+                if (getSelectedConnector() != null
+                        && !configurationModel
                         .scheduleOrUnscheduleJobs(getSelectedConnector())) {
                     messages.showMessage(
                             Level.ERROR,