diff --git a/00-base.ini b/00-base.ini
index 29ff83c..598f58d 100644
--- a/00-base.ini
+++ b/00-base.ini
@@ -11,4 +11,5 @@ plugin_web=Tank/Plugins/WebOnline.py
 plugin_tips=Tank/Plugins/TipsAndTricks.py
 plugin_totalautostop=Tank/Plugins/TotalAutostop.py
 plugin_loadosophia=Tank/Plugins/Loadosophia.py
-plugin_graphite=Tank/Plugins/GraphiteUploader.py
\ No newline at end of file
+plugin_graphite=Tank/Plugins/GraphiteUploader.py
+plugin_rcassert=Tank/Plugins/RCAssert.py
\ No newline at end of file
diff --git a/Tank/Plugins/Aggregator.py b/Tank/Plugins/Aggregator.py
index 290cf1a..9fe7e85 100644
--- a/Tank/Plugins/Aggregator.py
+++ b/Tank/Plugins/Aggregator.py
@@ -306,11 +306,12 @@ class AbstractReader:
         
     def __append_sample(self, result, item):
         ''' add single sample to aggregator buffer '''
-        (marker, threads, overall_rt, http_code, net_code, sent_bytes, received_bytes, connect, send, latency, receive, accuracy) = item
-        for check in [threads, overall_rt, sent_bytes, received_bytes, connect, send, latency, receive, accuracy]:
+        for check in item:
             if check < 0:
                 self.log.error("Problem item: %s", item)
                 raise ValueError("One of the sample items has negative value")
+
+        (marker, threads, overall_rt, http_code, net_code, sent_bytes, received_bytes, connect, send, latency, receive, accuracy) = item
         result.case = marker
         result.active_threads = threads
         result.planned_requests = 0
diff --git a/Tank/Plugins/JMeter.py b/Tank/Plugins/JMeter.py
index b04cc05..8b237df 100644
--- a/Tank/Plugins/JMeter.py
+++ b/Tank/Plugins/JMeter.py
@@ -15,8 +15,7 @@ import datetime
 
 class JMeterPlugin(AbstractPlugin):
     ''' JMeter tank plugin '''
-    SECTION = 'jmeter'
-    
+    SECTION = 'jmeter'    
     
     def __init__(self, core):
         AbstractPlugin.__init__(self, core)
@@ -38,6 +37,7 @@ class JMeterPlugin(AbstractPlugin):
     def get_available_options(self):
         return ["jmx", "args", "jmeter_path", ]
     
+    
     def configure(self):
         self.original_jmx = self.get_option("jmx")
         self.core.add_artifact_file(self.original_jmx, True)
diff --git a/debian/changelog b/debian/changelog
index 2f3797a..fc9c28d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,8 +1,10 @@
 yandex-load-tank-base (1.3.9) precise; urgency=low
 
   * add bash completion
+  * add support for Loadosophia.org active tests
+  * add RCAssert plugin
 
- -- Andrey Pohilko (undera) <undera@yandex-team.ru>  Fri, 22 Mar 2013 17:55:21 +0400
+ -- Andrey Pohilko (undera) <undera@yandex-team.ru>  Tue, 26 Mar 2013 19:43:07 +0400
 
 yandex-load-tank-base (1.3.8) precise; urgency=low
 
diff --git a/tankcore.py b/tankcore.py
index 8c7c081..8fcf58c 100644
--- a/tankcore.py
+++ b/tankcore.py
@@ -327,7 +327,7 @@ class TankCore:
             plugin = self.__get_plugin_by_key(plugin_key)
             self.log.debug("Post-process %s", plugin)
             try:
-                plugin.post_process(retcode)
+                retcode=plugin.post_process(retcode)
             except Exception, ex:
                 self.log.error("Failed post-processing plugin %s: %s", plugin, ex)
                 self.log.debug("Failed post-processing plugin: %s", traceback.format_exc(ex))