diff --git a/buildSrc/src/main/resources/checkstyle_suppressions.xml b/buildSrc/src/main/resources/checkstyle_suppressions.xml
index ec837e980e5d4..73844771417d7 100644
--- a/buildSrc/src/main/resources/checkstyle_suppressions.xml
+++ b/buildSrc/src/main/resources/checkstyle_suppressions.xml
@@ -27,7 +27,9 @@
   <suppress files="libs" checks="." />
   <!-- Excludes checkstyle run on modules module -->
   <suppress files="modules" checks="." />
-
+  <!-- Excludes checkstyle run on rest-api-spec module -->
+  <suppress files="rest-api-spec" checks="." />
+  
   <!--
     Truly temporary suppressions suppression of snippets included in
     documentation that are so wide that they scroll.
diff --git a/gradle/formatting.gradle b/gradle/formatting.gradle
index 261c3021b3625..b882d8d7e477f 100644
--- a/gradle/formatting.gradle
+++ b/gradle/formatting.gradle
@@ -78,7 +78,6 @@ def projectPathsToExclude = [
   ':plugins:store-smb',
   ':plugins:transport-nio',
   ':qa:die-with-dignity',
-  ':rest-api-spec',
   ':test:fixtures:azure-fixture',
   ':test:fixtures:gcs-fixture',
   ':test:fixtures:hdfs-fixture',
diff --git a/rest-api-spec/src/yamlRestTest/java/org/opensearch/test/rest/ClientYamlTestSuiteIT.java b/rest-api-spec/src/yamlRestTest/java/org/opensearch/test/rest/ClientYamlTestSuiteIT.java
index 72a99ef8406b0..86b4567c3ad4d 100644
--- a/rest-api-spec/src/yamlRestTest/java/org/opensearch/test/rest/ClientYamlTestSuiteIT.java
+++ b/rest-api-spec/src/yamlRestTest/java/org/opensearch/test/rest/ClientYamlTestSuiteIT.java
@@ -41,7 +41,7 @@
 
 /** Rest integration test. Runs against a cluster started by {@code gradle integTest} */
 
-//The default 20 minutes timeout isn't always enough, but Darwin CI hosts are incredibly slow...
+// The default 20 minutes timeout isn't always enough, but Darwin CI hosts are incredibly slow...
 @TimeoutSuite(millis = 40 * TimeUnits.MINUTE)
 public class ClientYamlTestSuiteIT extends OpenSearchClientYamlSuiteTestCase {
     public ClientYamlTestSuiteIT(ClientYamlTestCandidate testCandidate) {