diff --git a/pkgs/applications/networking/browsers/w3m/default.nix b/pkgs/applications/networking/browsers/w3m/default.nix
index c9d8f626c8c6..32deafffe907 100644
--- a/pkgs/applications/networking/browsers/w3m/default.nix
+++ b/pkgs/applications/networking/browsers/w3m/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     sha256 = "1qx9f0kprf92r1wxl3sacykla0g04qsi0idypzz24b7xy9ix5579";
   };
 
-  NIX_LDFLAGS = "-lsocket -lnsl";
+  NIX_LDFLAGS = stdenv.lib.optionalString stdenv.isSunOS "-lsocket -lnsl";
 
   patches = [ ./glibc214.patch ]
     # Patch for the newer unstable boehm-gc 7.2alpha. Not all platforms use that