diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index 652a826e95a..7cbe57c49c7 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -45,8 +45,6 @@
     modularArithmetic = null;           # requires base >= 4.7
     pipesBinary = super.pipesBinary.override { binary = self.binary_0_7_2_1; };
     rank1dynamic = super.rank1dynamic.override { binary = self.binary_0_7_2_1; };
-    networkTransport = super.networkTransport.override { binary = self.binary_0_7_2_1; };
-    networkTransportTcp = super.networkTransportTcp.override { binary = self.binary_0_7_2_1; };
     distributedStatic = super.distributedStatic.override { binary = self.binary_0_7_2_1; };
     distributedProcess = super.distributedProcess.override { binary = self.binary_0_7_2_1; };
     singletons = null;                  # requires base >= 4.7