diff --git a/pkgs/development/libraries/haskell/servant-pool/servant-pool.nix b/pkgs/development/libraries/haskell/servant-pool/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/servant-pool/servant-pool.nix
rename to pkgs/development/libraries/haskell/servant-pool/default.nix
diff --git a/pkgs/development/libraries/haskell/servant-postgresql/servant-postgresql.nix b/pkgs/development/libraries/haskell/servant-postgresql/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/servant-postgresql/servant-postgresql.nix
rename to pkgs/development/libraries/haskell/servant-postgresql/default.nix
diff --git a/pkgs/development/libraries/haskell/servant-response/servant-response.nix b/pkgs/development/libraries/haskell/servant-response/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/servant-response/servant-response.nix
rename to pkgs/development/libraries/haskell/servant-response/default.nix
diff --git a/pkgs/development/libraries/haskell/servant-scotty/servant-scotty.nix b/pkgs/development/libraries/haskell/servant-scotty/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/servant-scotty/servant-scotty.nix
rename to pkgs/development/libraries/haskell/servant-scotty/default.nix
diff --git a/pkgs/development/libraries/haskell/servant/servant.nix b/pkgs/development/libraries/haskell/servant/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/servant/servant.nix
rename to pkgs/development/libraries/haskell/servant/default.nix