diff --git a/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/IndexStateManagementRestTestCase.kt b/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/IndexStateManagementRestTestCase.kt
index ddb510488..ab8e772a2 100644
--- a/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/IndexStateManagementRestTestCase.kt
+++ b/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/IndexStateManagementRestTestCase.kt
@@ -476,8 +476,6 @@ abstract class IndexStateManagementRestTestCase : IndexManagementRestTestCase()
 
     protected fun ExplainFilter.toHttpEntity(): HttpEntity = StringEntity(toJsonString(), APPLICATION_JSON)
 
-    protected fun ExplainFilter.toHttpEntity(): HttpEntity = StringEntity(toJsonString(), ContentType.APPLICATION_JSON)
-
     protected fun ChangePolicy.toHttpEntity(): HttpEntity {
         var string = "{\"${ChangePolicy.POLICY_ID_FIELD}\":\"$policyID\","
         if (state != null) {
diff --git a/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/resthandler/RestExplainActionIT.kt b/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/resthandler/RestExplainActionIT.kt
index 5c91f9364..c0842adbf 100644
--- a/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/resthandler/RestExplainActionIT.kt
+++ b/src/test/kotlin/org/opensearch/indexmanagement/indexstatemanagement/resthandler/RestExplainActionIT.kt
@@ -500,6 +500,9 @@ class RestExplainActionIT : IndexStateManagementRestTestCase() {
 
         removePolicyFromIndex(indexName1)
         removePolicyFromIndex(indexName2)
+
+        // wait for job to finish
+        Thread.sleep(1000)
     }
 
     fun `test explain filter failed index`() {
@@ -607,6 +610,9 @@ class RestExplainActionIT : IndexStateManagementRestTestCase() {
 
         removePolicyFromIndex(indexName1)
         removePolicyFromIndex(indexName2)
+
+        // wait for job to finish
+        Thread.sleep(1000)
     }
 
     @Suppress("UNCHECKED_CAST") // Do assertion of the response map here so we don't have many places to do suppression.