diff --git a/.travis.yml b/.travis.yml
index 59f6a8549..62867e030 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,7 +37,7 @@ script:
   - |
     if [[ "$TRAVIS_RUST_VERSION" == "nightly" ]]; then
     RUSTFLAGS="--cfg procmacro2_semver_exempt" cargo install -f cargo-tarpaulin
-    cargo tarpaulin --features="ssl,tls,rust-tls" --out Xml
+    RUST_BACKTRACE=1 cargo tarpaulin --features="ssl,tls,rust-tls" --out Xml
     bash <(curl -s https://codecov.io/bash)
     echo "Uploaded code coverage"
     fi