diff --git a/lisa/analysis/proxy.py b/lisa/analysis/proxy.py
index 14b2ac20bedf1fd8bd75dadf05f62442ea84686f..a33c8302df609590b88f1f8b86992e9498b99c5c 100644
--- a/lisa/analysis/proxy.py
+++ b/lisa/analysis/proxy.py
@@ -51,10 +51,10 @@ class AnalysisProxy(Loggable):
         def predicate(f):
             return callable(f) and hasattr(f, 'used_events')
 
-        return set(itertools.chain(
+        return set(itertools.chain.from_iterable(
             attr.used_events.get_all_events()
-            for name, attr in inspect.getmembers(cls, predicate=predicate)
             for cls in TraceAnalysisBase.get_analysis_classes().values()
+            for name, attr in inspect.getmembers(cls, predicate=predicate)
         ))
 
     def __dir__(self):