diff --git a/servant-foreign/src/Servant/Foreign/Internal.hs b/servant-foreign/src/Servant/Foreign/Internal.hs
index d4130470..6851fd56 100644
--- a/servant-foreign/src/Servant/Foreign/Internal.hs
+++ b/servant-foreign/src/Servant/Foreign/Internal.hs
@@ -8,6 +8,9 @@
 module Servant.Foreign.Internal where
 
 import           Control.Lens hiding (cons)
+#if !MIN_VERSION_base(4,8,0)
+import           Data.Monoid
+#endif
 import           Data.Proxy
 import           Data.String
 import           Data.Text