diff --git a/appveyor.yml b/appveyor.yml
index 978d328ec..3f6bb85ef 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -6,6 +6,7 @@ environment:
   certpass:
     secure: 0BgXJqxq9Ei34/hZ7121FQ==
   keyfile: C:\users\appveyor\Certificates.p12
+  RUSTFLAGS: -Zorbit=off
 
 branches:
   only: