diff --git a/core/src/main/groovy/com/muwire/core/MuWireSettings.groovy b/core/src/main/groovy/com/muwire/core/MuWireSettings.groovy
index 43509aa3..a9a213f1 100644
--- a/core/src/main/groovy/com/muwire/core/MuWireSettings.groovy
+++ b/core/src/main/groovy/com/muwire/core/MuWireSettings.groovy
@@ -67,7 +67,7 @@ class MuWireSettings {
         props.setProperty("downloadRetryInterval", String.valueOf(downloadRetryInterval))
         props.setProperty("updateCheckInterval", String.valueOf(updateCheckInterval))
         props.setProperty("autoDownloadUpdate", String.valueOf(autoDownloadUpdate))
-        props.setProperty("updateType",updateType)
+        props.setProperty("updateType",String.valueOf(updateType))
         props.setProperty("shareDownloadedFiles", String.valueOf(shareDownloadedFiles))
         props.setProperty("downloadSequentialRatio", String.valueOf(downloadSequentialRatio))
         props.setProperty("hostClearInterval", String.valueOf(hostClearInterval))
diff --git a/gui/griffon-app/lifecycle/Ready.groovy b/gui/griffon-app/lifecycle/Ready.groovy
index b5a9a2c0..54f0647d 100644
--- a/gui/griffon-app/lifecycle/Ready.groovy
+++ b/gui/griffon-app/lifecycle/Ready.groovy
@@ -49,7 +49,7 @@ class Ready extends AbstractLifecycleHandler {
             log.info("creating new properties")
             props = new MuWireSettings()
             props.embeddedRouter = Boolean.parseBoolean(System.getProperties().getProperty("embeddedRouter"))
-            props.updateType = System.getProperty("updateType")
+            props.updateType = System.getProperty("updateType","jar")
             def nickname
             while (true) {
                 nickname = JOptionPane.showInputDialog(null,