diff --git a/lib/nntp/tiny/session.py b/lib/nntp/tiny/session.py
index d34638b..1a2266c 100644
--- a/lib/nntp/tiny/session.py
+++ b/lib/nntp/tiny/session.py
@@ -743,6 +743,7 @@ class Session():
         line = self.readline()
 
         if line == '':
+            self.state &= ~SessionState.ACTIVE
             return
 
         tokens = self.RE_SPLIT.split(line.rstrip())