diff --git a/hadrian/doc/user-settings.md b/hadrian/doc/user-settings.md
index 795f877557f4d3a2eb1ad1793ca849640215d889..6b0cfdcea06dc9b70f5d2adf68dbb4bd2fc6c402 100644
--- a/hadrian/doc/user-settings.md
+++ b/hadrian/doc/user-settings.md
@@ -33,9 +33,6 @@ data Flavour = Flavour {
     rtsWays :: Ways,
     -- | Build dynamic GHC programs.
     dynamicGhcPrograms :: Action Bool,
-    -- | Enable GHCi debugger.
-    ghciWithDebugger :: Stage -- ^ stage of the /built/ compiler
-                     -> Bool,
     -- | Build profiled GHC.
     ghcProfiled :: Stage -- ^ stage of the /built/ compiler
                 -> Bool,
diff --git a/hadrian/src/Flavour/Type.hs b/hadrian/src/Flavour/Type.hs
index da236cbba3dc7f7386b0a909ee5ecf6a5e926a89..87963d8aaf173619e029fc15cb00bcf1d0ebb4de 100644
--- a/hadrian/src/Flavour/Type.hs
+++ b/hadrian/src/Flavour/Type.hs
@@ -28,9 +28,6 @@ data Flavour = Flavour {
     rtsWays :: Ways,
     -- | Build dynamic GHC programs.
     dynamicGhcPrograms :: Action Bool,
-    -- | Enable GHCi debugger.
-    ghciWithDebugger :: Stage -- ^ stage of the /built/ compiler
-                     -> Bool,
     -- | Build profiled GHC.
     ghcProfiled :: Stage -- ^ stage of the /built/ compiler
                 -> Bool,
diff --git a/hadrian/src/Settings/Default.hs b/hadrian/src/Settings/Default.hs
index 245c9d079a099000fdfe18605215cd8722ed19b4..b03c5f6de355eb533db3af58a3893300e6810987 100644
--- a/hadrian/src/Settings/Default.hs
+++ b/hadrian/src/Settings/Default.hs
@@ -248,7 +248,6 @@ defaultFlavour = Flavour
     , libraryWays        = defaultLibraryWays
     , rtsWays            = defaultRtsWays
     , dynamicGhcPrograms = defaultDynamicGhcPrograms
-    , ghciWithDebugger   = const False
     , ghcProfiled        = const False
     , ghcDebugged        = const False
     , ghcThreaded        = const True