diff --git a/Shared/lib/python3.7/site-packages/stem/control.py b/Shared/lib/python3.7/site-packages/stem/control.py
index 2e89378..780e07c 100644
--- a/Shared/lib/python3.7/site-packages/stem/control.py
+++ b/Shared/lib/python3.7/site-packages/stem/control.py
@@ -2270,7 +2270,7 @@ class Controller(BaseController):
       # entries since the user didn't request those by their key, so we can't
       # be sure what they wanted.
 
-      for key in reply:
+      for key in list(reply):
         if not key.lower() in MAPPED_CONFIG_KEYS.values():
           user_expected_key = _case_insensitive_lookup(params, key, key)
 
diff --git a/Shared/update.sh b/Shared/update.sh
index a1e02ab..ff08bcf 100755
--- a/Shared/update.sh
+++ b/Shared/update.sh
@@ -16,4 +16,3 @@ mv p37/lib/python3.7/site-packages lib/python3.7/site-packages
 patch -p2 -R < large_pdf.patch
 
 rm -r p37 old
-rm -rf lib/python3.4/site-packages/netifaces*