diff --git a/tools/src/prepare-for-vale/KeepDescriptions.ts b/tools/src/prepare-for-vale/KeepDescriptions.ts
index 6d6da3ae2..8995f8df5 100644
--- a/tools/src/prepare-for-vale/KeepDescriptions.ts
+++ b/tools/src/prepare-for-vale/KeepDescriptions.ts
@@ -25,7 +25,7 @@ export default class KeepDescriptions {
 
   process(): void {
     this.root_folder
-    const files = fg.globSync([`${this.root_folder}/**/*.yaml`])
+    const files = fg.globSync([`${this.root_folder}/**/*.{yaml,yml}`])
     files.forEach((path) => {
       this.logger.log(path)
       this.process_file(path)
diff --git a/tools/tests/prepare-for-vale/KeepDescriptions.test.ts b/tools/tests/prepare-for-vale/KeepDescriptions.test.ts
index 0c595299b..52f2a9790 100644
--- a/tools/tests/prepare-for-vale/KeepDescriptions.test.ts
+++ b/tools/tests/prepare-for-vale/KeepDescriptions.test.ts
@@ -15,7 +15,7 @@ import tmp from 'tmp'
 describe('KeepDescriptions', () => {
   var temp: tmp.DirResult
   var fixture_path: string = './tools/tests/prepare-for-vale/fixtures'
-  var fixtures = fg.globSync(`${fixture_path}/**/*.yaml`)
+  var fixtures = fg.globSync(`${fixture_path}/**/*.{yaml,yml}`)
 
   describe('defaults', () => {
     beforeAll(() => {
diff --git a/tools/tests/prepare-for-vale/fixtures/docker-compose.txt b/tools/tests/prepare-for-vale/fixtures/docker-compose.txt
new file mode 100644
index 000000000..1dac6def4
--- /dev/null
+++ b/tools/tests/prepare-for-vale/fixtures/docker-compose.txt
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/tools/tests/prepare-for-vale/fixtures/docker-compose.yaml b/tools/tests/prepare-for-vale/fixtures/docker-compose.yaml
new file mode 100644
index 000000000..04c267ec5
--- /dev/null
+++ b/tools/tests/prepare-for-vale/fixtures/docker-compose.yaml
@@ -0,0 +1,12 @@
+version: '3'
+
+services:
+  opensearch-cluster:
+    image: ${OPENSEARCH_DOCKER_HUB_PROJECT:-opensearchproject}/opensearch:${OPENSEARCH_VERSION:-latest}${OPENSEARCH_DOCKER_REF}
+    ports:
+      - 9200:9200
+      - 9600:9600
+    environment:
+      - OPENSEARCH_INITIAL_ADMIN_PASSWORD=${OPENSEARCH_PASSWORD:-myStrongPassword123!}
+      - OPENSEARCH_JAVA_OPTS=${OPENSEARCH_JAVA_OPTS}
+      - discovery.type=single-node