diff --git a/.travis.yml b/.travis.yml
index d591b2f..ca0e2d0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,7 +25,7 @@ install:
   - if [ "$TRAVIS_OS_NAME" = "osx" ]; then source $HOME/.nvm/nvm.sh; fi
   - if [ "$TRAVIS_OS_NAME" = "osx" ]; then nvm install 10; fi
   - if [ "$TRAVIS_OS_NAME" = "osx" ]; then nvm use 10; fi
-  - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+  - if [ "$TRAVIS_RUST_VERSION" != "1.13.0" ]; then curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh; fi
 script: ./ci/travis.sh
 notifications:
   email: false