diff --git a/.travis.yml b/.travis.yml
index f4f6cee..de1a999 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,8 +3,8 @@ rust: nightly
 sudo: false
 
 script:
-  - cargo test
-  - cargo test --manifest-path testcrate/Cargo.toml
+  - RUSTFLAGS='--cfg procmacro2_semver_exempt'  cargo test
+  - RUSTFLAGS='--cfg procmacro2_semver_exempt'  cargo test --manifest-path testcrate/Cargo.toml
 
 notifications:
   email: