diff --git a/flake.nix b/flake.nix
index e37e52c4..4064f78b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -15,42 +15,30 @@
         inputs.flake-root.flakeModule
       ];
       perSystem = { self', system, lib, config, pkgs, ... }: {
-        apps.default = {
-          type = "app";
-          program =
-            let
-              run-hackage-server = pkgs.writeShellApplication {
-                name = "run-hackage-server";
-                runtimeInputs = [ config.packages.default ];
-                text = ''
-                  if [ ! -d "state" ]; then
-                    hackage-server init --static-dir=datafiles --state-dir=state
-                  else
-                    echo "'state' state-dir already exists"
-                  fi
-                  hackage-server run \
-                    --static-dir=datafiles \
-                    --state-dir=state \
-                    --base-uri=http://127.0.0.1:8080
-                '';
-              };
-            in "${lib.getExe run-hackage-server}";
+        apps.default.program = pkgs.writeShellApplication {
+          name = "run-hackage-server";
+          runtimeInputs = [ config.packages.default ];
+          text = ''
+            if [ ! -d "state" ]; then
+              hackage-server init --static-dir=datafiles --state-dir=state
+            else
+              echo "'state' state-dir already exists"
+            fi
+            hackage-server run \
+              --static-dir=datafiles \
+              --state-dir=state \
+              --base-uri=http://127.0.0.1:8080
+          '';
         };
-        apps.mirror-hackage-server = {
-          type = "app";
-          program =
-            let
-              mirror-hackage-server = pkgs.writeShellApplication {
-                name = "mirror-hackage-server";
-                runtimeInputs = [ config.packages.default ];
-                text = ''
-                  echo 'Copying packages from real Hackage Server into local Hackage Server.'
-                  echo 'This assumes the local Hackage Server uses default credentials;'
-                  echo 'otherwise, override in nix-default-servers.cfg'
-                  hackage-mirror nix-default-servers.cfg
-                '';
-              };
-            in "${lib.getExe mirror-hackage-server}";
+        apps.mirror-hackage-server.program = pkgs.writeShellApplication {
+          name = "mirror-hackage-server";
+          runtimeInputs = [ config.packages.default ];
+          text = ''
+            echo 'Copying packages from real Hackage Server into local Hackage Server.'
+            echo 'This assumes the local Hackage Server uses default credentials;'
+            echo 'otherwise, override in nix-default-servers.cfg'
+            hackage-mirror nix-default-servers.cfg
+          '';
         };
         packages.default = config.packages.hackage-server;
         haskellProjects.default = {