diff --git a/netdissect/nethook.py b/netdissect/nethook.py
index 8dffc1d..ae54c53 100644
--- a/netdissect/nethook.py
+++ b/netdissect/nethook.py
@@ -188,7 +188,7 @@ def _unhook_layer(self, aka):
         if aka in self._replacement:
             del self._replacement[aka]
         if aka in self._retained:
-            del self._replacement[aka]
+            del self._retained[aka]
 
     def _postprocess_forward(self, x, aka):
         '''