diff --git a/internal/services/redis/redis_cache_resource.go b/internal/services/redis/redis_cache_resource.go
index 0a654bb26fdf..e3d8b8f7f570 100644
--- a/internal/services/redis/redis_cache_resource.go
+++ b/internal/services/redis/redis_cache_resource.go
@@ -820,12 +820,20 @@ func expandRedisConfiguration(d *pluginsdk.ResourceData) (*redis.RedisCommonProp
 	// nolint : staticcheck
 	v, valExists := d.GetOkExists("redis_configuration.0.rdb_backup_enabled")
 	if valExists {
-		if v := raw["rdb_backup_enabled"].(bool); v {
-			if connStr := raw["rdb_storage_connection_string"].(string); connStr == "" {
-				return nil, fmt.Errorf("The rdb_storage_connection_string property must be set when rdb_backup_enabled is true")
+		skuName := d.Get("sku_name").(string)
+		rdbBackupEnabled := raw["rdb_backup_enabled"].(bool)
+
+		// rdb_backup_enabled is available when SKU is Premium
+		if strings.EqualFold(skuName, string(redis.SkuNamePremium)) {
+			if rdbBackupEnabled {
+				if connStr := raw["rdb_storage_connection_string"].(string); connStr == "" {
+					return nil, fmt.Errorf("The rdb_storage_connection_string property must be set when rdb_backup_enabled is true")
+				}
 			}
+			output.RdbBackupEnabled = utils.String(strconv.FormatBool(rdbBackupEnabled))
+		} else if rdbBackupEnabled && !strings.EqualFold(skuName, string(redis.SkuNamePremium)) {
+			return nil, fmt.Errorf("The `rdb_backup_enabled` property requires a `Premium` sku to be set")
 		}
-		output.RdbBackupEnabled = utils.String(strconv.FormatBool(v.(bool)))
 	}
 
 	if v := raw["rdb_backup_frequency"].(int); v > 0 {