diff --git a/.travis.yml b/.travis.yml
index aab5d0c4..58a3ad4a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,8 +20,8 @@ before_script:
 script:
   - npm run lint
   - npm run test:ci
-  - if [[ -z $TRAVIS_TAG ]]; then docker build -t shlink-web-client:test . ; fi
-  - if [[ -z $TRAVIS_TAG ]]; then npm run mutate:ci ; fi
+  - if [[ $TRAVIS_PULL_REQUEST != 'false' ]]; then docker build -t shlink-web-client:test . ; fi
+  - if [[ $TRAVIS_PULL_REQUEST != 'false' ]]; then npm run mutate:ci ; fi
 
 after_success:
   - node_modules/.bin/ocular coverage/clover.xml