diff --git a/pkgs/applications/audio/ekho/default.nix b/pkgs/by-name/ek/ekho/package.nix
similarity index 86%
rename from pkgs/applications/audio/ekho/default.nix
rename to pkgs/by-name/ek/ekho/package.nix
index c0cde8aaf9a1..043908298266 100644
--- a/pkgs/applications/audio/ekho/default.nix
+++ b/pkgs/by-name/ek/ekho/package.nix
@@ -10,17 +10,17 @@
 , espeak-ng
 , sonic
 , utf8cpp
-, AudioUnit
+, darwin
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "ekho";
   version = "9.0";
 
   src = fetchFromGitHub {
     owner = "hgneng";
     repo = "ekho";
-    rev = "v${version}";
+    rev = "v${finalAttrs.version}";
     hash = "sha256-VYN9tR3BJXd3UA0V5vqQJNItJe1e1knZ+S7tLeaeYYk=";
   };
 
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ pkg-config autoconf automake libtool ];
 
   buildInputs = [ libsndfile libpulseaudio espeak-ng sonic utf8cpp ]
-    ++ lib.optionals stdenv.isDarwin [ AudioUnit ];
+    ++ lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.AudioUnit ];
 
   meta = with lib; {
     description = "Chinese text-to-speech software";
@@ -51,5 +51,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2Plus;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ aaronjheng ];
+    mainProgram = "ekho";
   };
-}
+})
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7d13526153f6..bdc85bebc9df 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -29508,10 +29508,6 @@ with pkgs;
 
   oed = callPackage ../applications/editors/oed { };
 
-  ekho = callPackage ../applications/audio/ekho {
-    inherit (darwin.apple_sdk.frameworks) AudioUnit;
-  };
-
   electron-cash = libsForQt5.callPackage ../applications/misc/electron-cash { };
 
   electrum = libsForQt5.callPackage ../applications/misc/electrum { };