diff --git a/.travis.yml b/.travis.yml
index 06612a3..0a381a7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,7 +28,7 @@ script:
 - cargo test
 
 after_success: |
-  if [[ "$TRAVIS_RUST_VERSION" == stable ]]; then
+  if [[ "$TRAVIS_RUST_VERSION" == nightly ]]; then
     cargo install cargo-tarpaulin
     cargo tarpaulin --ciserver travis-ci --coveralls $TRAVIS_JOB_ID
   fi