--- a/src/server/server.py	Fri Feb 27 01:11:34 2015 +0100
+++ b/src/server/server.py	Fri Feb 27 01:45:34 2015 +0100
@@ -243,9 +243,9 @@
 
     def jsonrpc_sendMblog(self, type_, dest, text, extra={}):
         """ Send microblog message
-        @param type_: one of "PUBLIC", "GROUP"
-        @param dest: destinees (list of groups, ignored for "PUBLIC")
-        @param text: microblog's text
+        @param type_ (unicode): one of "PUBLIC", "GROUP"
+        @param dest (tuple(unicode)): recipient groups (ignored for "PUBLIC")
+        @param text (unicode): microblog's text
         """
         profile = ISATSession(self.session).profile
         extra['allow_comments'] = 'True'
@@ -257,7 +257,7 @@
             if type_ == "PUBLIC":
                 #This text if for the public microblog
                 log.debug("sending public blog")
-                return self.sat_host.bridge.sendGroupBlog("PUBLIC", [], text, extra, profile)
+                return self.sat_host.bridge.sendGroupBlog("PUBLIC", (), text, extra, profile)
             else:
                 log.debug("sending group blog")
                 dest = dest if isinstance(dest, list) else [dest]