diff --git a/internal/services/redis/redis_cache_resource.go b/internal/services/redis/redis_cache_resource.go
index e96bfc51c939..fca201b77852 100644
--- a/internal/services/redis/redis_cache_resource.go
+++ b/internal/services/redis/redis_cache_resource.go
@@ -179,7 +179,7 @@ func resourceRedisCache() *pluginsdk.Resource {
 							Computed: true,
 						},
 
-						"preferred_data_persistence_auth_method": {
+						"data_persistence_authentication_method": {
 							Type:     pluginsdk.TypeString,
 							Optional: true,
 							Default:  "SAS",
@@ -840,7 +840,7 @@ func expandRedisConfiguration(d *pluginsdk.ResourceData) (*redis.RedisCommonProp
 		output.MaxmemoryPolicy = utils.String(v)
 	}
 
-	if v := raw["preferred_data_persistence_auth_method"].(string); v != "" {
+	if v := raw["data_persistence_authentication_method"].(string); v != "" {
 		output.PreferredDataPersistenceAuthMethod = utils.String(v)
 	}
 
@@ -1015,7 +1015,7 @@ func flattenRedisConfiguration(input *redis.RedisCommonPropertiesRedisConfigurat
 	}
 
 	if input.PreferredDataPersistenceAuthMethod != nil {
-		outputs["preferred_data_persistence_auth_method"] = *input.PreferredDataPersistenceAuthMethod
+		outputs["data_persistence_authentication_method"] = *input.PreferredDataPersistenceAuthMethod
 	}
 
 	if input.MaxfragmentationmemoryReserved != nil {
diff --git a/internal/services/redis/redis_cache_resource_test.go b/internal/services/redis/redis_cache_resource_test.go
index 434ede5c0074..241a28b42f52 100644
--- a/internal/services/redis/redis_cache_resource_test.go
+++ b/internal/services/redis/redis_cache_resource_test.go
@@ -48,7 +48,7 @@ func TestAccRedisCache_managedIdentityAuth(t *testing.T) {
 				check.That(data.ResourceName).Key("minimum_tls_version").Exists(),
 				check.That(data.ResourceName).Key("primary_connection_string").Exists(),
 				check.That(data.ResourceName).Key("secondary_connection_string").Exists(),
-				check.That(data.ResourceName).Key("redis_configuration.0.preferred_data_persistence_auth_method").HasValue("ManagedIdentity"),
+				check.That(data.ResourceName).Key("redis_configuration.0.data_persistence_authentication_method").HasValue("ManagedIdentity"),
 			),
 		},
 		data.ImportStep(),
@@ -624,7 +624,7 @@ resource "azurerm_redis_cache" "test" {
   minimum_tls_version = "1.2"
 
   redis_configuration {
-    preferred_data_persistence_auth_method = "ManagedIdentity"
+    data_persistence_authentication_method = "ManagedIdentity"
   }
 }
 `, data.RandomInteger, data.Locations.Primary, data.RandomInteger, !requireSSL)
diff --git a/website/docs/r/redis_cache.html.markdown b/website/docs/r/redis_cache.html.markdown
index 9e8a8d0fe31e..45811986fd2c 100644
--- a/website/docs/r/redis_cache.html.markdown
+++ b/website/docs/r/redis_cache.html.markdown
@@ -146,7 +146,7 @@ redis_configuration {
 * `maxmemory_delta` - (Optional) The max-memory delta for this Redis instance. Defaults are shown below.
 * `maxmemory_policy` - (Optional) How Redis will select what to remove when `maxmemory` is reached. Defaults to `volatile-lru`.
 
-* `preferred_data_persistence_auth_method` - (Optional) Preferred auth method to communicate to storage account used for data persistence. Possible values are `SAS` and `ManagedIdentity`. Defaults to `SAS`.
+* `data_persistence_authentication_method` - (Optional) Preferred auth method to communicate to storage account used for data persistence. Possible values are `SAS` and `ManagedIdentity`. Defaults to `SAS`.
 
 * `maxfragmentationmemory_reserved` - (Optional) Value in megabytes reserved to accommodate for memory fragmentation. Defaults are shown below.