diff --git a/pkgs/development/libraries/haskell/unix-time/default.nix b/pkgs/development/libraries/haskell/unix-time/default.nix
index 0ca4ea5f5c24..e329c1ef4067 100644
--- a/pkgs/development/libraries/haskell/unix-time/default.nix
+++ b/pkgs/development/libraries/haskell/unix-time/default.nix
@@ -5,6 +5,7 @@ cabal.mkDerivation (self: {
   version = "0.2.2";
   sha256 = "0xnl12mscc5nwjl9s2lx4xr8q8agzcpxh3bmxxidfjrg19drfwrm";
   testDepends = [ doctest hspec QuickCheck time ];
+  configureFlags = self.stdenv.lib.optionalString self.enableSharedLibraries "--ghc-option=-fPIC";
   meta = {
     description = "Unix time parser/formatter and utilities";
     license = self.stdenv.lib.licenses.bsd3;