diff --git a/pkgs/development/compilers/ghc/8.6.3.nix b/pkgs/development/compilers/ghc/8.6.3.nix
index 605e442553d0..a2378b595684 100644
--- a/pkgs/development/compilers/ghc/8.6.3.nix
+++ b/pkgs/development/compilers/ghc/8.6.3.nix
@@ -172,6 +172,9 @@ stdenv.mkDerivation (rec {
   # Make sure we never relax`$PATH` and hooks support for compatability.
   strictDeps = true;
 
+  # Don’t add -liconv to LDFLAGS automatically so that GHC will add it itself.
+	dontAddExtraLibs = true;
+
   nativeBuildInputs = [
     perl autoconf automake m4 python3 sphinx
     ghc bootPkgs.alex bootPkgs.happy bootPkgs.hscolour