diff --git a/.travis.yml b/.travis.yml
index eae8d46f9..6fe164d6c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -107,6 +107,18 @@ jobs:
       <<: *DEFAULTS_JS
       script: make lint-docs
 
+    - stage: Lint
+      name: Verify OpenAPI client code
+      if: (repo = prymitive/karma AND type != pull_request) OR (repo != prymitive/karma AND type = pull_request)
+      language: generic
+      addons:
+        apt:
+          packages:
+            - docker-ce
+      script:
+        - travis_retry make openapi-client
+        - git diff --exit-code
+
     - stage: Snapshots
       name: Percy UI snapshots
       if: (repo = prymitive/karma AND type != pull_request) OR (repo != prymitive/karma AND type = pull_request)
diff --git a/Makefile b/Makefile
index e3dab2ad5..03dde31a8 100644
--- a/Makefile
+++ b/Makefile
@@ -167,6 +167,10 @@ format-go: .build/deps-build-go.ok
 format-js: .build/deps-build-node.ok
 	cd ui && ./node_modules/.bin/prettier --write 'src/**/*.js'
 
+.PHONY: openapi-client
+openapi-client:
+	for f in $(wildcard internal/mapper/*/Dockerfile) ; do $(MAKE) -C `dirname "$$f"` ; done
+
 .PHONY: show-version
 show-version:
 	@echo $(VERSION)