diff --git a/appveyor.yml b/appveyor.yml
index ef7845696..2d5a4458b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -22,4 +22,4 @@ build: false
 
 test_script:
   - REM SET RUST_LOG=tantivy,test & cargo test --verbose
-  - cargo run --example simple_search
+  - REM SET RUST_BACKTRACE=1 & cargo run --example simple_search