diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
index eababc62d6e3..b695c448be46 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
@@ -98,6 +98,7 @@ self: super: {
   # Older compilers need the latest ghc-lib to build this package.
   hls-hlint-plugin = addBuildDepend super.hls-hlint-plugin self.ghc-lib;
 
+  # vector 0.12.2 indroduced doctest checks that don‘t work on older compilers
   vector = dontCheck super.vector;
 
   mmorph = super.mmorph_1_1_3;
diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
index c23d875dea38..e6e0f690fe79 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
@@ -127,4 +127,6 @@ self: super: {
   # Older compilers need the latest ghc-lib to build this package.
   hls-hlint-plugin = addBuildDepend super.hls-hlint-plugin self.ghc-lib;
 
+  # vector 0.12.2 indroduced doctest checks that don‘t work on older compilers
+  vector = dontCheck super.vector;
 }