diff --git a/gc3libs/core.py b/gc3libs/core.py
index d4f5813a..dacfa622 100755
--- a/gc3libs/core.py
+++ b/gc3libs/core.py
@@ -1889,10 +1889,10 @@ def progress(self):
             for index in reversed(transitioned):
                 del self._terminating[index]
 
-            # now remove all terminated tasks
-            if self.forget_terminated:
-                for task in self._terminated:
-                    self._drop_terminated_task(task)
+        # now remove all terminated tasks
+        if self.forget_terminated:
+            for task in self._terminated:
+                self._drop_terminated_task(task)
 
     def _drop_terminated_task(self, task):
         assert task.execution.state == Run.State.TERMINATED