diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,7 @@
-# log-elasticsearch-0.10.0.1 (2019-01-14)
+# log-elasticsearch-0.10.1.0 (2019-05-15)
+* Add a Generic instance for ElasticSearchConfig.
+
+# log-elasticsearch-0.10.0.1 (2019-01-24)
 * Compatibility with ES 6.x by using "text" instead of deprecated "string"
 
 # log-elasticsearch-0.10.0.0 (2018-03-28)
diff --git a/log-elasticsearch.cabal b/log-elasticsearch.cabal
--- a/log-elasticsearch.cabal
+++ b/log-elasticsearch.cabal
@@ -1,5 +1,5 @@
 name:                log-elasticsearch
-version:             0.10.0.1
+version:             0.10.1.0
 synopsis:            Structured logging solution (Elasticsearch back end)
 
 description:         Elasticsearch back end for the 'log' library suite.
@@ -19,7 +19,7 @@
 cabal-version:       >=1.10
 extra-source-files:  CHANGELOG.md, README.md
 tested-with:         GHC == 7.10.3, GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4,
-                     GHC == 8.6.2
+                     GHC == 8.6.5
 
 Source-repository head
   Type:     git
diff --git a/src/Log/Backend/ElasticSearch/V1/Internal.hs b/src/Log/Backend/ElasticSearch/V1/Internal.hs
--- a/src/Log/Backend/ElasticSearch/V1/Internal.hs
+++ b/src/Log/Backend/ElasticSearch/V1/Internal.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE DeriveGeneric #-}
 module Log.Backend.ElasticSearch.V1.Internal
   (ElasticSearchConfig(..)
   ,defaultElasticSearchConfig
@@ -6,6 +7,7 @@
 where
 
 import Database.V1.Bloodhound hiding (Status)
+import GHC.Generics (Generic)
 import Prelude
 import qualified Data.Text as T
 
@@ -15,16 +17,21 @@
 data ElasticSearchConfig = ElasticSearchConfig {
     esServer        :: !T.Text -- ^ Elasticsearch server address.
   , esIndex         :: !T.Text -- ^ Elasticsearch index name.
-  , esShardCount    :: !Int    -- ^ Elasticsearch shard count for the named index.
-                               --
-                               -- @since 0.10.0.0
-  , esReplicaCount  :: !Int    -- ^ Elasticsearch replica count for the named index.
-                               --
-                               -- @since 0.10.0.0
-  , esMapping       :: !T.Text -- ^ Elasticsearch mapping name.
-  , esLogin         :: Maybe (EsUsername, EsPassword) -- ^ Elasticsearch basic authentication username and password.
-  , esLoginInsecure :: !Bool   -- ^ Allow basic authentication over non-TLS connections.
-  } deriving (Eq, Show)
+  , esShardCount    :: !Int
+    -- ^ Elasticsearch shard count for the named index.
+    --
+    -- @since 0.10.0.0
+  , esReplicaCount  :: !Int
+    -- ^ Elasticsearch replica count for the named index.
+    --
+    -- @since 0.10.0.0
+  , esMapping       :: !T.Text
+    -- ^ Elasticsearch mapping name.
+  , esLogin         :: Maybe (EsUsername, EsPassword)
+    -- ^ Elasticsearch basic authentication username and password.
+  , esLoginInsecure :: !Bool
+    -- ^ Allow basic authentication over non-TLS connections.
+  } deriving (Eq, Show, Generic)
 
 -- | Sensible defaults for 'ElasticSearchConfig'.
 defaultElasticSearchConfig :: ElasticSearchConfig
diff --git a/src/Log/Backend/ElasticSearch/V5/Internal.hs b/src/Log/Backend/ElasticSearch/V5/Internal.hs
--- a/src/Log/Backend/ElasticSearch/V5/Internal.hs
+++ b/src/Log/Backend/ElasticSearch/V5/Internal.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE DeriveGeneric #-}
 module Log.Backend.ElasticSearch.V5.Internal
   (ElasticSearchConfig(..)
   ,defaultElasticSearchConfig
@@ -6,6 +7,7 @@
 where
 
 import Database.V5.Bloodhound hiding (Status)
+import GHC.Generics (Generic)
 import Prelude
 import qualified Data.Text as T
 
@@ -29,7 +31,7 @@
     -- ^ Elasticsearch basic authentication username and password.
   , esLoginInsecure :: !Bool
     -- ^ Allow basic authentication over non-TLS connections.
-  } deriving (Eq, Show)
+  } deriving (Eq, Show, Generic)
 
 -- | Sensible defaults for 'ElasticSearchConfig'.
 defaultElasticSearchConfig :: ElasticSearchConfig