diff --git a/.travis.yml b/.travis.yml
index 265e3ff..a6c9054 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,8 @@ env:
     - JANSSON_BUILD_METHOD=autotools
     - JANSSON_BUILD_METHOD=coverage JANSSON_CMAKE_OPTIONS="-DJANSSON_COVERAGE=ON -DJANSSON_COVERALLS=ON -DCMAKE_BUILD_TYPE=Debug" JANSSON_EXTRA_INSTALL="lcov curl"
     - JANSSON_BUILD_METHOD=fuzzer
+    - JANSSON_BUILD_METHOD=lint
+dist: bionic
 language: c
 compiler:
   - gcc
@@ -14,13 +16,17 @@ matrix:
       env: JANSSON_BUILD_METHOD=coverage JANSSON_CMAKE_OPTIONS="-DJANSSON_COVERAGE=ON -DJANSSON_COVERALLS=ON -DCMAKE_BUILD_TYPE=Debug" JANSSON_EXTRA_INSTALL="lcov curl"
     - compiler: clang
       env: JANSSON_BUILD_METHOD=fuzzer
+    - compiler: gcc
+      env: JANSSON_BUILD_METHOD=lint
   allow_failures:
     - env: JANSSON_BUILD_METHOD=coverage JANSSON_CMAKE_OPTIONS="-DJANSSON_COVERAGE=ON -DJANSSON_COVERALLS=ON -DCMAKE_BUILD_TYPE=Debug" JANSSON_EXTRA_INSTALL="lcov curl"
 install:
   - sudo apt-get update -qq
   - sudo apt-get install -y -qq cmake $JANSSON_EXTRA_INSTALL
+  - if [ "$TRAVIS_COMPILER" = "clang" ]; then sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add - && sudo apt-add-repository "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-9 main" -y && sudo apt-get install -y -qq clang-9 clang-format-9; fi
 script:
   - if [ "$JANSSON_BUILD_METHOD" = "autotools" ]; then autoreconf -f -i && CFLAGS=-Werror ./configure && make check; fi
   - if [ "$JANSSON_BUILD_METHOD" = "cmake" ]; then mkdir build && cd build && cmake $JANSSON_CMAKE_OPTIONS .. && cmake --build . && ctest --output-on-failure; fi
   - if [ "$JANSSON_BUILD_METHOD" = "coverage" ]; then mkdir build && cd build && cmake $JANSSON_CMAKE_OPTIONS .. && cmake --build . && cmake --build . --target coveralls; fi
   - if [ "$JANSSON_BUILD_METHOD" = "fuzzer" ]; then ./test/ossfuzz/travisoss.sh; fi
+  - if [ "$JANSSON_BUILD_METHOD" = "lint" ]; then ./scripts/clang-format-ci; fi