diff --git a/flake.nix b/flake.nix
index 18bcdb7..38ece25 100644
--- a/flake.nix
+++ b/flake.nix
@@ -69,16 +69,12 @@
         )
       //
       {
-        library = pkgs.writeText "library.sh" (
-          (builtins.readFile ./library.sh) + (lib.strings.concatStrings
-            [
-              "export PATH="
-              (lib.makeBinPath
-                (map (x: self.packages.${system}.${x.name}) scripts-with-envs))
-              ":$PATH"
-            ]
-          )
-        );
+        library = pkgs.writeText "library.sh" (lib.strings.concatStrings [
+          (builtins.readFile ./library.sh)
+          "export PATH=$PATH:"
+          (lib.makeBinPath
+            (map (x: self.packages.${system}.${x.name}) scripts-with-envs))
+        ]);
       };
       devShells.${system}.default = pkgs.mkShell
         {