diff --git a/local.py b/local.py
index 29f08e7..31b28ba 100755
--- a/local.py
+++ b/local.py
@@ -58,6 +58,7 @@ class RemoteHandler(object):
             self.conn.pause()
 
     def on_drain(self, s):
+        logging.debug('remote drain')
         if self.local_handler:
             self.local_handler.conn.resume()
 
@@ -125,6 +126,7 @@ class LocalHandler(object):
             self.cached_pieces.append(data)
 
     def on_drain(self, s):
+        logging.debug('local drain')
         if self.remote_handler:
             self.remote_handler.conn.resume()
 
diff --git a/server.py b/server.py
index fbaf7e3..bac0b7e 100755
--- a/server.py
+++ b/server.py
@@ -58,6 +58,7 @@ class RemoteHandler(object):
             self.conn.pause()
 
     def on_drain(self, s):
+        logging.debug('remote drain')
         if self.local_handler:
             self.local_handler.conn.resume()
 
@@ -116,6 +117,7 @@ class LocalHandler(object):
             self.cached_pieces.append(data)
 
     def on_drain(self, s):
+        logging.debug('local drain')
         if self.remote_handler:
             self.remote_handler.conn.resume()