diff --git a/library/stdarch/.appveyor.yml b/library/stdarch/.appveyor.yml
index bd02240ad106..db316d20e96f 100644
--- a/library/stdarch/.appveyor.yml
+++ b/library/stdarch/.appveyor.yml
@@ -20,5 +20,4 @@ build: false
 
 test_script:
   - cargo test --target %TARGET%
-  - set RUST_BACKTRACE=1
   - cargo test --target %TARGET% --release