diff --git a/appdir.sh b/appdir.sh
index e23b8ee..b445435 100755
--- a/appdir.sh
+++ b/appdir.sh
@@ -13,7 +13,7 @@ fi
 
 target="$1"
 
-expr="with import <nixpkgs> {}; with import ./. {}; appdir { name = \"$target\"; target = $target; }"
+expr="with import <nixpkgs> {}; with import ./appimage-top.nix {}; appdir { name = \"$target\"; target = $target; }"
 
 out=$(nix-store --no-gc-warning -r $(nix-instantiate --no-gc-warning -E "$expr"))
 
diff --git a/appimage-top.nix b/appimage-top.nix
new file mode 100644
index 0000000..a3ca0d8
--- /dev/null
+++ b/appimage-top.nix
@@ -0,0 +1,13 @@
+{nixpkgs ? import <nixpkgs> {}}:
+
+with nixpkgs;
+
+rec {
+  appimagetool = callPackage ./appimagetool.nix {};
+
+  appimage = callPackage ./appimage.nix {
+    inherit appimagetool;
+  };
+
+  appdir = callPackage ./appdir.nix {};
+}
diff --git a/nix2appimage.sh b/nix2appimage.sh
index fc86f75..cfa71ed 100755
--- a/nix2appimage.sh
+++ b/nix2appimage.sh
@@ -19,7 +19,7 @@ fi
 
 target="$1"
 
-expr="with import <nixpkgs> {}; with import ./. {}; appimage (appdir { name = \"$target\"; target = $target; })"
+expr="with import <nixpkgs> {}; with import ./appimage-top.nix {}; appimage (appdir { name = \"$target\"; target = $target; })"
 
 out=$(nix-store --no-gc-warning -r $(nix-instantiate --no-gc-warning -E "$expr"))