diff --git a/.travis.yml b/.travis.yml
index e1e8cb4f80..b243e3d5c4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,6 +32,13 @@ matrix:
         - MAKE_ARGS="syntax-check distcheck"
       script:
         - make -C ci/ ci-build@$IMAGE CI_MAKE_ARGS="$MAKE_ARGS"
+    - services:
+        - docker
+      env:
+        - IMAGE="debian-9"
+        - MAKE_ARGS="syntax-check distcheck"
+      script:
+        - make -C ci/ ci-build@$IMAGE CI_MAKE_ARGS="$MAKE_ARGS"
     - services:
         - docker
       env: