diff --git a/src/node/db/SessionManager.js b/src/node/db/SessionManager.js
index ec4948a6..5ce4f748 100644
--- a/src/node/db/SessionManager.js
+++ b/src/node/db/SessionManager.js
@@ -139,7 +139,7 @@ exports.createSession = function(groupID, authorID, validUntil, callback)
         if(ERR(err, callback)) return;
         
         //the entry doesn't exist so far, let's create it
-        if(group2sessions == null)
+        if(group2sessions == null || group2sessions.sessionIDs == null)
         {
           group2sessions = {sessionIDs : {}};
         }
@@ -162,7 +162,7 @@ exports.createSession = function(groupID, authorID, validUntil, callback)
         if(ERR(err, callback)) return;
         
         //the entry doesn't exist so far, let's create it
-        if(author2sessions == null)
+        if(author2sessions == null || author2sessions.sessionIDs == null)
         {
           author2sessions = {sessionIDs : {}};
         }