diff --git a/pkgs/nix-portable/default.nix b/pkgs/nix-portable/default.nix
index 8034a6ef..c04427e6 100644
--- a/pkgs/nix-portable/default.nix
+++ b/pkgs/nix-portable/default.nix
@@ -69,7 +69,13 @@ let
     { nativeBuildInputs = [ upx ]; }
     ''
       mkdir -p $out/bin
-      upx -9 -o $out/bin/${binName} ${binPath}
+      theBinPath=${binPath}
+
+      if [[ -L "$theBinPath" ]]; then
+        theBinPath=$(readlink -f "$theBinPath")
+      fi
+
+      upx -9 -o $out/bin/${binName} $theBinPath
     '';
 
   installBin = pkg: bin: ''