diff --git a/README.md b/README.md
index 35b0d07..de7d2cc 100644
--- a/README.md
+++ b/README.md
@@ -51,9 +51,11 @@ it accepts an attrset of:
 - `extraArgs` - an attrset of additional arguments passed to all entries and templates
 - `entries` - a list of all entry files to be processed
 - `templates` - a list of all template files to be applied
-- `extraFiles` - a list of attrsets of `source` and `destination`:
-    - `source` - a path, if relative `$PWD` is `$src` in the `installPhase`
-    - `destination` - a path, never absolute, appended to `$out` in the `installPhase`
+- `extraFiles` - a list of either:
+    - a path to the source file - will be copied to `$out` in the `installPhase`
+    - attrset of `source` and `destination`:
+        - `source` - a path, if relative `$PWD` is `$src` in the `installPhase`
+        - `destination` - a path, never absolute, appended to `$out` in the `installPhase`
 
 example usage of the wrapper function:
 ```nix
@@ -86,6 +88,7 @@ mkNteDerivation {
   ];
 
   extraFiles = [
+    ./data.txt # equivalent to { source = ./data.txt; destination = "/"; }
     { source = ./image.png; destination = "/assets/"; }
     { source = ./image2.png; destination = "/assets/dupa.png"; }
     { source = "./data/*"; destination = "/assets/data/"; }
diff --git a/nte-drv.nix b/nte-drv.nix
index 77b1bde..c0768a4 100644
--- a/nte-drv.nix
+++ b/nte-drv.nix
@@ -8,6 +8,7 @@ pkgs: engine: {
   extraFiles ? []
 }: let
   inherit (pkgs) lib;
+  inherit (lib.attrsets) isAttrs;
   inherit (lib.lists) forEach init;
   inherit (lib.strings) concatStrings concatStringsSep match normalizePath optionalString splitString;
 in pkgs.stdenv.mkDerivation {
@@ -28,12 +29,16 @@ in pkgs.stdenv.mkDerivation {
 
     ${concatStrings (forEach extraFiles
         (extraFile: let
-          isInSubdir = (match ".+/.*" extraFile.destination) != null;
-          outDir = normalizePath "$out/${concatStringsSep "/" (init (splitString "/" extraFile.destination))}";
-          outPath = normalizePath "$out/${extraFile.destination}";
+          fileAttrs = if isAttrs extraFile
+            then extraFile
+            else { source = extraFile; destination = "/"; };
+
+          isInSubdir = (match ".+/.*" fileAttrs.destination) != null;
+          outDir = normalizePath "$out/${concatStringsSep "/" (init (splitString "/" fileAttrs.destination))}";
+          outPath = normalizePath "$out/${fileAttrs.destination}";
         in /*sh*/''
           ${optionalString isInSubdir /*sh*/"mkdir -p ${outDir}"}
-          cp -r ${extraFile.source} ${outPath}
+          cp -r ${fileAttrs.source} ${outPath}
         ''))
     }