diff --git a/lib/installer-exclude/libjitsi.jar b/lib/installer-exclude/libjitsi.jar
index dca3d8b92..a47fb6d30 100644
Binary files a/lib/installer-exclude/libjitsi.jar and b/lib/installer-exclude/libjitsi.jar differ
diff --git a/src/net/java/sip/communicator/plugin/provisioning/ProvisioningServiceImpl.java b/src/net/java/sip/communicator/plugin/provisioning/ProvisioningServiceImpl.java
index 63e584482..0267bd4f7 100644
--- a/src/net/java/sip/communicator/plugin/provisioning/ProvisioningServiceImpl.java
+++ b/src/net/java/sip/communicator/plugin/provisioning/ProvisioningServiceImpl.java
@@ -604,6 +604,10 @@ private void updateConfiguration(final File file)
                 String key = (String)entry.getKey();
                 Object value = entry.getValue();
 
+                // skip empty keys, prevent them going into the configuration
+                if(key.trim().length() == 0)
+                    continue;
+
                 if(key.equals(PROVISIONING_ALLOW_PREFIX_PROP))
                 {
                     String prefixes[] = ((String)value).split("\\|");