diff --git a/src/main/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/IndexManagementPlugin.kt b/src/main/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/IndexManagementPlugin.kt
index 591ab039f..09d6473fc 100644
--- a/src/main/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/IndexManagementPlugin.kt
+++ b/src/main/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/IndexManagementPlugin.kt
@@ -75,6 +75,7 @@ internal class IndexManagementPlugin : JobSchedulerExtension, ActionPlugin, Plug
         const val PLUGIN_NAME = "opendistro-im"
         const val OPEN_DISTRO_BASE_URI = "/_opendistro"
         const val ISM_BASE_URI = "$OPEN_DISTRO_BASE_URI/_ism"
+        const val ANALYZER_BASE_URI = "$OPEN_DISTRO_BASE_URI/_analyzer"
         const val POLICY_BASE_URI = "$ISM_BASE_URI/policies"
         const val INDEX_MANAGEMENT_INDEX = ".opendistro-ism-config"
         const val INDEX_MANAGEMENT_JOB_TYPE = "opendistro-index-management"
diff --git a/src/main/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RestRefreshSynonymAnalyzerAction.kt b/src/main/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RestRefreshSynonymAnalyzerAction.kt
index 031bf7233..a72754f53 100644
--- a/src/main/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RestRefreshSynonymAnalyzerAction.kt
+++ b/src/main/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RestRefreshSynonymAnalyzerAction.kt
@@ -15,6 +15,7 @@
 
 package com.amazon.opendistroforelasticsearch.indexmanagement.refreshanalyzer
 
+import com.amazon.opendistroforelasticsearch.indexmanagement.IndexManagementPlugin.Companion.ANALYZER_BASE_URI
 import org.elasticsearch.client.node.NodeClient
 import org.elasticsearch.common.Strings
 import org.elasticsearch.rest.BaseRestHandler
@@ -54,6 +55,6 @@ class RestRefreshSynonymAnalyzerAction : BaseRestHandler() {
     }
 
     companion object {
-        const val REFRESH_SYNONYM_ANALYZER_URI = "/{index}/_refresh_synonym_analyzer"
+        const val REFRESH_SYNONYM_ANALYZER_URI = "$ANALYZER_BASE_URI/refresh_synonym_analyzer/{index}"
     }
 }
diff --git a/src/test/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RefreshSynonymAnalyzerActionIT.kt b/src/test/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RefreshSynonymAnalyzerActionIT.kt
index be164b150..6e18964e1 100644
--- a/src/test/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RefreshSynonymAnalyzerActionIT.kt
+++ b/src/test/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RefreshSynonymAnalyzerActionIT.kt
@@ -15,6 +15,7 @@
 
 package com.amazon.opendistroforelasticsearch.indexmanagement.refreshanalyzer
 
+import com.amazon.opendistroforelasticsearch.indexmanagement.IndexManagementPlugin
 import com.amazon.opendistroforelasticsearch.indexmanagement.IndexManagementRestTestCase
 import org.elasticsearch.client.Request
 import org.elasticsearch.common.io.Streams
@@ -202,7 +203,8 @@ class RefreshSynonymAnalyzerActionIT : IndexManagementRestTestCase() {
         }
 
         fun refreshAnalyzer(indexName: String) {
-            val request = Request("POST", "/$indexName/_refresh_synonym_analyzer")
+            val request = Request("POST",
+                    "${IndexManagementPlugin.ANALYZER_BASE_URI}/refresh_synonym_analyzer/$indexName")
             client().performRequest(request)
         }
 
diff --git a/src/test/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RestRefreshSynonymAnalyzerActionIT.kt b/src/test/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RestRefreshSynonymAnalyzerActionIT.kt
index 779b540df..e3243d89d 100644
--- a/src/test/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RestRefreshSynonymAnalyzerActionIT.kt
+++ b/src/test/kotlin/com/amazon/opendistroforelasticsearch/indexmanagement/refreshanalyzer/RestRefreshSynonymAnalyzerActionIT.kt
@@ -15,6 +15,7 @@
 
 package com.amazon.opendistroforelasticsearch.indexmanagement.refreshanalyzer
 
+import com.amazon.opendistroforelasticsearch.indexmanagement.IndexManagementPlugin.Companion.ANALYZER_BASE_URI
 import com.amazon.opendistroforelasticsearch.indexmanagement.IndexManagementRestTestCase
 import com.amazon.opendistroforelasticsearch.indexmanagement.indexstatemanagement.makeRequest
 import org.elasticsearch.client.ResponseException
@@ -26,7 +27,7 @@ class RestRefreshSynonymAnalyzerActionIT : IndexManagementRestTestCase() {
 
     fun `test missing indices`() {
         try {
-            client().makeRequest(POST.toString(), "//_refresh_synonym_analyzer")
+            client().makeRequest(POST.toString(), "$ANALYZER_BASE_URI/refresh_synonym_analyzer")
             fail("Expected a failure")
         } catch (e: ResponseException) {
             assertEquals("Unexpected RestStatus", RestStatus.BAD_REQUEST, e.response.restStatus())
@@ -34,10 +35,10 @@ class RestRefreshSynonymAnalyzerActionIT : IndexManagementRestTestCase() {
             val expectedErrorMessage = mapOf(
                     "error" to mapOf(
                             "root_cause" to listOf<Map<String, Any>>(
-                                    mapOf("type" to "illegal_argument_exception", "reason" to "Missing indices")
+                                    mapOf("type" to "parse_exception", "reason" to "request body is required")
                             ),
-                            "type" to "illegal_argument_exception",
-                            "reason" to "Missing indices"
+                            "type" to "parse_exception",
+                            "reason" to "request body is required"
                     ),
                     "status" to 400
             )
@@ -52,7 +53,7 @@ class RestRefreshSynonymAnalyzerActionIT : IndexManagementRestTestCase() {
         closeIndex(indexName)
 
         try {
-            client().makeRequest(POST.toString(), "/$indexName/_refresh_synonym_analyzer")
+            client().makeRequest(POST.toString(), "$ANALYZER_BASE_URI/refresh_synonym_analyzer/$indexName")
             fail("Expected a failure")
         } catch (e: ResponseException) {
             val response = e.response.asMap()