diff --git a/.travis.yml b/.travis.yml
index 0b6895a0..41bb89d5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,7 @@ install:
 
 before_script:
   - echo "Building commit range ${TRAVIS_COMMIT_RANGE}"
-  - export MUTATION_FILES=$(git diff ${TRAVIS_COMMIT_RANGE:-origin/master} --name-only | grep -E 'src\/(.*).(js|ts|jsx|tsx)' | paste -sd ",")
+  - export MUTATION_FILES=$(git diff ${TRAVIS_COMMIT_RANGE:-origin/master} --name-only | grep -E 'src\/(.*).(js|ts|jsx|tsx)$' | paste -sd ",")
 
 script:
   - npm run lint