diff --git a/cabal-install/Distribution/Client/Config.hs b/cabal-install/Distribution/Client/Config.hs
index b2686b00b73..98b287dd3a3 100644
--- a/cabal-install/Distribution/Client/Config.hs
+++ b/cabal-install/Distribution/Client/Config.hs
@@ -1026,7 +1026,7 @@ haddockFlagsFields = [ field
                            name  = fieldName field
                      , name `notElem` exclusions ]
   where
-    exclusions = ["verbose", "builddir"]
+    exclusions = ["verbose", "builddir", "for-hackage"]
 
 -- | Fields for the 'program-locations' section.
 withProgramsFields :: [FieldDescr [(String, FilePath)]]